Help categorize the TRS-80 software archive

Nearly 30,000 programs, and almost none of them say what kind of program they are. Mark whatever you recognize. Pick as many words as fit — a game that teaches arithmetic is Game, Math, Education — then send the page. Everything is reviewed by hand before it goes anywhere near the archive, so a best guess is worth more than a blank.

Important Note: Do not do multiple entries of the same program. If you flag Super Nova by Big Five once, all Super Nova by Big Five entries will get updated. No need to waste your time flagging each Super Nova

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MultiDOS 1.6 Quick Reference Summary

Author Unknown

M1 · TXT

mds16qrs.zip

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MultiDOS Banner Changer v3.0 [MD]

Bob White

M3 · CMD

mdosbanr.zip

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MultiDOS Double Density Operating System v1.0 [Hacked]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1982 · DMK

mudo10vb.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
Screen shot

MultiDOS Double Density Operating System v1.2 [Hacked]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1982 · DMK

mudo12vb.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
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MultiDOS II [Incomplete]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1983 · DMK

mltds2vh.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
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MultiDOS v1.0 [Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1981 · DMK

mds1100m.zip

MULTIDOS For Your TRS-80 Model I and Model III Most EFFICIENT Disk Basic Interpreter! A true Z-80 Basic. Others claim to have a NEW Basic, but their cumbersome archaic code cannot measure up to the speed and size of SUPER-BASIC. Seeing Is Believing! Most COMPATIBLE Operating System! Model III MULTIDOS will Automatically Read (without reconfiguring system between reads -without modifying source media) MULTIDOS Model I Single Density LDOS Model I Single Density MULTIDOS Model I P Density LDOS Model I Double Density MULTIDOS Model I Double Density LDOS Model III DOSPLUS Model I Double Density NEWDOS/80 Model I Double Density (unadulterated) DOSPLUS Model III NEWDOS/80 Model III (unadulterated) PERCOM DBLDOS UTILITY TO READ TRSDOS MODEL III, VERSION 1.3. Other Model I Single Density Operating Systems Must Be Altered (via System Utility) To Be Read By MULTIDOS Model III. MULTIDOS Model I Doesn't Care! It Just Reads 'Em. (Hardware Modification Required To Read Double Density Diskettes) Most PORTABILITY Mix & Match Model I and Model III MULTIDOS Diskettes. - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $15.00 Cosmopolitan Electronics Corporation P.O. BOX 234 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - For Model I Orders Only Please Specify Single, Double or P Density. Cosmopolitan Electronics Corporation C/O VERNON B. HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax COD Orders Add $1.50 Personal Checks Take 2 Weeks To Clear
Screen shot

MultiDOS v1.0 [Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M3 · 1982 · DMK

mds3100m.zip

MULTIDOS For Your TRS-80 Model I and Model III Most EFFICIENT Disk Basic Interpreter! A true Z-80 Basic. Others claim to have a NEW Basic, but their cumbersome archaic code cannot measure up to the speed and size of SUPER-BASIC. Seeing Is Believing! Most COMPATIBLE Operating System! Model III MULTIDOS will Automatically Read (without reconfiguring system between reads -without modifying source media) MULTIDOS Model I Single Density LDOS Model I Single Density MULTIDOS Model I P Density LDOS Model I Double Density MULTIDOS Model I Double Density LDOS Model III DOSPLUS Model I Double Density NEWDOS/80 Model I Double Density (unadulterated) DOSPLUS Model III NEWDOS/80 Model III (unadulterated) PERCOM DBLDOS UTILITY TO READ TRSDOS MODEL III, VERSION 1.3. Other Model I Single Density Operating Systems Must Be Altered (via System Utility) To Be Read By MULTIDOS Model III. MULTIDOS Model I Doesn't Care! It Just Reads 'Em. (Hardware Modification Required To Read Double Density Diskettes) Most PORTABILITY Mix & Match Model I and Model III MULTIDOS Diskettes. - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $15.00 Cosmopolitan Electronics Corporation P.O. BOX 234 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - For Model I Orders Only Please Specify Single, Double or P Density. Cosmopolitan Electronics Corporation C/O VERNON B. HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax COD Orders Add $1.50 Personal Checks Take 2 Weeks To Clear
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MultiDOS v1.1

Vernon B Hester / Cosmopolitan Electronics Corp

M3 · 1981 · DMK

mds3110a.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
Screen shot

MultiDOS v1.1 [Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1981 · DMK

mds1110m.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
Screen shot

MultiDOS v1.2

Vernon B Hester / Cosmopolitan Electronics Corp

M3 · 1982 · DMK

mds3120a.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
Screen shot

MultiDOS v1.2D [Double Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1982 · DMK

mds1120d.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
Screen shot

MultiDOS v1.2P [Pseudo Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1982 · DMK

mds1120p.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
Screen shot

MultiDOS v1.2S [Single Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1982 · DMK

mds1120s.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
Screen shot

MultiDOS v1.3

Vernon B Hester / Cosmopolitan Electronics Corp

M3 · 1982 · DMK

mds3130b.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
Screen shot

MultiDOS v1.3a [Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M3 · 1982 · DMK

mds3130a.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
Screen shot

MultiDOS v1.3D [Double Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1982 · DMK

mds1130d.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
Screen shot

MultiDOS v1.3k

Vernon B Hester / Cosmopolitan Electronics Corp

M3 · 1982 · DMK

mds3130k.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
Screen shot

MultiDOS v1.3P [Pseudo Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1982 · DMK

mds1130p.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
Screen shot

MultiDOS v1.3S [Single Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1982 · DMK

mds1130s.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
Screen shot

MultiDOS v1.4 [Double Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1982 · DMK

mds1140d.zip

MULTIDOS For Your TRS-80 Model I and Model III Most EFFICIENT Disk Basic Interpreter! A true Z-80 Basic. Others claim to have a NEW Basic, but their cumbersome archaic code cannot measure up to the speed and size of SUPER-BASIC. Seeing Is Believing! Most COMPATIBLE Operating System! Model III MULTIDOS will Automatically Read (without reconfiguring system between reads -without modifying source media) MULTIDOS Model I Single Density LDOS Model I Single Density MULTIDOS Model I P Density LDOS Model I Double Density MULTIDOS Model I Double Density LDOS Model III DOSPLUS Model I Double Density NEWDOS/80 Model I Double Density (unadulterated) DOSPLUS Model III NEWDOS/80 Model III (unadulterated) PERCOM DBLDOS UTILITY TO READ TRSDOS MODEL III, VERSION 1.3. Other Model I Single Density Operating Systems Must Be Altered (via System Utility) To Be Read By MULTIDOS Model III. MULTIDOS Model I Doesn't Care! It Just Reads 'Em. (Hardware Modification Required To Read Double Density Diskettes) Most PORTABILITY Mix & Match Model I and Model III MULTIDOS Diskettes. - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $15.00 Cosmopolitan Electronics Corporation P.O. BOX 234 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - For Model I Orders Only Please Specify Single, Double or P Density. Cosmopolitan Electronics Corporation C/O VERNON B. HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax COD Orders Add $1.50 Personal Checks Take 2 Weeks To Clear
Screen shot

MultiDOS v1.4 [Pseudo Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1982 · DMK

mds1140p.zip

MULTIDOS For Your TRS-80 Model I and Model III Most EFFICIENT Disk Basic Interpreter! A true Z-80 Basic. Others claim to have a NEW Basic, but their cumbersome archaic code cannot measure up to the speed and size of SUPER-BASIC. Seeing Is Believing! Most COMPATIBLE Operating System! Model III MULTIDOS will Automatically Read (without reconfiguring system between reads -without modifying source media) MULTIDOS Model I Single Density LDOS Model I Single Density MULTIDOS Model I P Density LDOS Model I Double Density MULTIDOS Model I Double Density LDOS Model III DOSPLUS Model I Double Density NEWDOS/80 Model I Double Density (unadulterated) DOSPLUS Model III NEWDOS/80 Model III (unadulterated) PERCOM DBLDOS UTILITY TO READ TRSDOS MODEL III, VERSION 1.3. Other Model I Single Density Operating Systems Must Be Altered (via System Utility) To Be Read By MULTIDOS Model III. MULTIDOS Model I Doesn't Care! It Just Reads 'Em. (Hardware Modification Required To Read Double Density Diskettes) Most PORTABILITY Mix & Match Model I and Model III MULTIDOS Diskettes. - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $15.00 Cosmopolitan Electronics Corporation P.O. BOX 234 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - For Model I Orders Only Please Specify Single, Double or P Density. Cosmopolitan Electronics Corporation C/O VERNON B. HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax COD Orders Add $1.50 Personal Checks Take 2 Weeks To Clear
Screen shot

MultiDOS v1.4 [Single Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1982 · DMK

mds1140s.zip

MULTIDOS For Your TRS-80 Model I and Model III Most EFFICIENT Disk Basic Interpreter! A true Z-80 Basic. Others claim to have a NEW Basic, but their cumbersome archaic code cannot measure up to the speed and size of SUPER-BASIC. Seeing Is Believing! Most COMPATIBLE Operating System! Model III MULTIDOS will Automatically Read (without reconfiguring system between reads -without modifying source media) MULTIDOS Model I Single Density LDOS Model I Single Density MULTIDOS Model I P Density LDOS Model I Double Density MULTIDOS Model I Double Density LDOS Model III DOSPLUS Model I Double Density NEWDOS/80 Model I Double Density (unadulterated) DOSPLUS Model III NEWDOS/80 Model III (unadulterated) PERCOM DBLDOS UTILITY TO READ TRSDOS MODEL III, VERSION 1.3. Other Model I Single Density Operating Systems Must Be Altered (via System Utility) To Be Read By MULTIDOS Model III. MULTIDOS Model I Doesn't Care! It Just Reads 'Em. (Hardware Modification Required To Read Double Density Diskettes) Most PORTABILITY Mix & Match Model I and Model III MULTIDOS Diskettes. - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $15.00 Cosmopolitan Electronics Corporation P.O. BOX 234 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - For Model I Orders Only Please Specify Single, Double or P Density. Cosmopolitan Electronics Corporation C/O VERNON B. HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax COD Orders Add $1.50 Personal Checks Take 2 Weeks To Clear
Screen shot

MultiDOS v1.5 [Double Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1982 · DMK

mds1150d.zip

MULTIDOS For Your TRS-80 Model I and Model III Most EFFICIENT Disk Basic Interpreter! A true Z-80 Basic. Others claim to have a NEW Basic, but their cumbersome archaic code cannot measure up to the speed and size of SUPER-BASIC. Seeing Is Believing! Most COMPATIBLE Operating System! Model III MULTIDOS will Automatically Read (without reconfiguring system between reads -without modifying source media) MULTIDOS Model I Single Density LDOS Model I Single Density MULTIDOS Model I P Density LDOS Model I Double Density MULTIDOS Model I Double Density LDOS Model III DOSPLUS Model I Double Density NEWDOS/80 Model I Double Density (unadulterated) DOSPLUS Model III NEWDOS/80 Model III (unadulterated) PERCOM DBLDOS UTILITY TO READ TRSDOS MODEL III, VERSION 1.3. Other Model I Single Density Operating Systems Must Be Altered (via System Utility) To Be Read By MULTIDOS Model III. MULTIDOS Model I Doesn't Care! It Just Reads 'Em. (Hardware Modification Required To Read Double Density Diskettes) Most PORTABILITY Mix & Match Model I and Model III MULTIDOS Diskettes. - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $15.00 Cosmopolitan Electronics Corporation P.O. BOX 234 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - For Model I Orders Only Please Specify Single, Double or P Density. Cosmopolitan Electronics Corporation C/O VERNON B. HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax COD Orders Add $1.50 Personal Checks Take 2 Weeks To Clear
Screen shot

MultiDOS v1.5 [Pseudo Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1982 · DMK

mds1150p.zip

MULTIDOS For Your TRS-80 Model I and Model III Most EFFICIENT Disk Basic Interpreter! A true Z-80 Basic. Others claim to have a NEW Basic, but their cumbersome archaic code cannot measure up to the speed and size of SUPER-BASIC. Seeing Is Believing! Most COMPATIBLE Operating System! Model III MULTIDOS will Automatically Read (without reconfiguring system between reads -without modifying source media) MULTIDOS Model I Single Density LDOS Model I Single Density MULTIDOS Model I P Density LDOS Model I Double Density MULTIDOS Model I Double Density LDOS Model III DOSPLUS Model I Double Density NEWDOS/80 Model I Double Density (unadulterated) DOSPLUS Model III NEWDOS/80 Model III (unadulterated) PERCOM DBLDOS UTILITY TO READ TRSDOS MODEL III, VERSION 1.3. Other Model I Single Density Operating Systems Must Be Altered (via System Utility) To Be Read By MULTIDOS Model III. MULTIDOS Model I Doesn't Care! It Just Reads 'Em. (Hardware Modification Required To Read Double Density Diskettes) Most PORTABILITY Mix & Match Model I and Model III MULTIDOS Diskettes. - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $15.00 Cosmopolitan Electronics Corporation P.O. BOX 234 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - For Model I Orders Only Please Specify Single, Double or P Density. Cosmopolitan Electronics Corporation C/O VERNON B. HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax COD Orders Add $1.50 Personal Checks Take 2 Weeks To Clear
Screen shot

MultiDOS v1.5P [Pseudo Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1982 · DMK

mup15pvb.zip

MULTIDOS For Your TRS-80 Model I and Model III Most EFFICIENT Disk Basic Interpreter! A true Z-80 Basic. Others claim to have a NEW Basic, but their cumbersome archaic code cannot measure up to the speed and size of SUPER-BASIC. Seeing Is Believing! Most COMPATIBLE Operating System! Model III MULTIDOS will Automatically Read (without reconfiguring system between reads -without modifying source media) MULTIDOS Model I Single Density LDOS Model I Single Density MULTIDOS Model I P Density LDOS Model I Double Density MULTIDOS Model I Double Density LDOS Model III DOSPLUS Model I Double Density NEWDOS/80 Model I Double Density (unadulterated) DOSPLUS Model III NEWDOS/80 Model III (unadulterated) PERCOM DBLDOS UTILITY TO READ TRSDOS MODEL III, VERSION 1.3. Other Model I Single Density Operating Systems Must Be Altered (via System Utility) To Be Read By MULTIDOS Model III. MULTIDOS Model I Doesn't Care! It Just Reads 'Em. (Hardware Modification Required To Read Double Density Diskettes) Most PORTABILITY Mix & Match Model I and Model III MULTIDOS Diskettes. - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $15.00 Cosmopolitan Electronics Corporation P.O. BOX 234 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - For Model I Orders Only Please Specify Single, Double or P Density. Cosmopolitan Electronics Corporation C/O VERNON B. HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax COD Orders Add $1.50 Personal Checks Take 2 Weeks To Clear
Screen shot

MultiDOS v1.5S [Single Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1982 · DMK

mds1150s.zip

MULTIDOS For Your TRS-80 Model I and Model III Most EFFICIENT Disk Basic Interpreter! A true Z-80 Basic. Others claim to have a NEW Basic, but their cumbersome archaic code cannot measure up to the speed and size of SUPER-BASIC. Seeing Is Believing! Most COMPATIBLE Operating System! Model III MULTIDOS will Automatically Read (without reconfiguring system between reads -without modifying source media) MULTIDOS Model I Single Density LDOS Model I Single Density MULTIDOS Model I P Density LDOS Model I Double Density MULTIDOS Model I Double Density LDOS Model III DOSPLUS Model I Double Density NEWDOS/80 Model I Double Density (unadulterated) DOSPLUS Model III NEWDOS/80 Model III (unadulterated) PERCOM DBLDOS UTILITY TO READ TRSDOS MODEL III, VERSION 1.3. Other Model I Single Density Operating Systems Must Be Altered (via System Utility) To Be Read By MULTIDOS Model III. MULTIDOS Model I Doesn't Care! It Just Reads 'Em. (Hardware Modification Required To Read Double Density Diskettes) Most PORTABILITY Mix & Match Model I and Model III MULTIDOS Diskettes. - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $15.00 Cosmopolitan Electronics Corporation P.O. BOX 234 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - For Model I Orders Only Please Specify Single, Double or P Density. Cosmopolitan Electronics Corporation C/O VERNON B. HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax COD Orders Add $1.50 Personal Checks Take 2 Weeks To Clear
Screen shot

MultiDOS v1.5SK [Custom for Computer Shack]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1982 · DMK

mds115sk.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
Screen shot

MultiDOS v1.6

Vernon B Hester / Cosmopolitan Electronics Corp

M3 · 1982 · DMK

mds3160a.zip

NEW LOW PRICE ON MULTIDOS 1.6 . ONLY $59.95 inch every DOS I've tried has either been too slow and weak or too complicated and powerful for me to use. I feel sure that many other people have this same problem, and MULTIDOS is certainly the solution.' Tim Knight in InfoWorld . If you have many disk formats, MULTIDOS is for you: it reads Mod I&III LDOS, Mod I TRSDOS, Mod I&III NEWDOS 80, Mod I&III DOSPLUS, TRSDOS 6 and DOSPLUS 4; writes to Mod I&III LDOS, Mod I TRSDOS, Mod I&III NEWDOS 80, Mod I&III DOSPLUS, TRSDOS 6 and DOSPLUS 4. Utility programs lets you read Model III TRSDOS disks and convert the address marks on Mod I TRSDOS disks . VFU utility lets you COPY, PURGE, or MOVE files by displaying a directory and letting you mark files with the cursor; even copies and moves FROM DATA DISK TO DATA DISK with two drives and from one DOS to another! use multiple commands on one line . fastest BACKUP and COPY; use with one or two drives . auto density and track recognition; no more PDRIVE hassle . on-screen HELP with 40 different library commands . alphabetized directory MULTIDOS' SUPER BASIC ADDS MANY ENHANCEMENTS . leaves over 40K of memory free . combine program lines, delete spaces with packer . incorporates BOSS debugging utility . intelligent global editor . many more features . your program displays by page; no more 'warp 5 inch scrolling MULTIDOS 1.6 FOR MODEL I OR III IS ONLY $59.95.
Screen shot

MultiDOS v1.6 [Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M3 · 1983 · DMK

mds3160m.zip

NEW LOW PRICE ON MULTIDOS 1.6 . ONLY $59.95 inch every DOS I've tried has either been too slow and weak or too complicated and powerful for me to use. I feel sure that many other people have this same problem, and MULTIDOS is certainly the solution.' Tim Knight in InfoWorld . If you have many disk formats, MULTIDOS is for you: it reads Mod I&III LDOS, Mod I TRSDOS, Mod I&III NEWDOS 80, Mod I&III DOSPLUS, TRSDOS 6 and DOSPLUS 4; writes to Mod I&III LDOS, Mod I TRSDOS, Mod I&III NEWDOS 80, Mod I&III DOSPLUS, TRSDOS 6 and DOSPLUS 4. Utility programs lets you read Model III TRSDOS disks and convert the address marks on Mod I TRSDOS disks . VFU utility lets you COPY, PURGE, or MOVE files by displaying a directory and letting you mark files with the cursor; even copies and moves FROM DATA DISK TO DATA DISK with two drives and from one DOS to another! use multiple commands on one line . fastest BACKUP and COPY; use with one or two drives . auto density and track recognition; no more PDRIVE hassle . on-screen HELP with 40 different library commands . alphabetized directory MULTIDOS' SUPER BASIC ADDS MANY ENHANCEMENTS . leaves over 40K of memory free . combine program lines, delete spaces with packer . incorporates BOSS debugging utility . intelligent global editor . many more features . your program displays by page; no more 'warp 5 inch scrolling MULTIDOS 1.6 FOR MODEL I OR III IS ONLY $59.95.
Screen shot

MultiDOS v1.6aD [Double Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1983 · DMK

md116adm.zip

NEW LOW PRICE ON MULTIDOS 1.6 . ONLY $59.95 inch every DOS I've tried has either been too slow and weak or too complicated and powerful for me to use. I feel sure that many other people have this same problem, and MULTIDOS is certainly the solution.' Tim Knight in InfoWorld . If you have many disk formats, MULTIDOS is for you: it reads Mod I&III LDOS, Mod I TRSDOS, Mod I&III NEWDOS 80, Mod I&III DOSPLUS, TRSDOS 6 and DOSPLUS 4; writes to Mod I&III LDOS, Mod I TRSDOS, Mod I&III NEWDOS 80, Mod I&III DOSPLUS, TRSDOS 6 and DOSPLUS 4. Utility programs lets you read Model III TRSDOS disks and convert the address marks on Mod I TRSDOS disks . VFU utility lets you COPY, PURGE, or MOVE files by displaying a directory and letting you mark files with the cursor; even copies and moves FROM DATA DISK TO DATA DISK with two drives and from one DOS to another! use multiple commands on one line . fastest BACKUP and COPY; use with one or two drives . auto density and track recognition; no more PDRIVE hassle . on-screen HELP with 40 different library commands . alphabetized directory MULTIDOS' SUPER BASIC ADDS MANY ENHANCEMENTS . leaves over 40K of memory free . combine program lines, delete spaces with packer . incorporates BOSS debugging utility . intelligent global editor . many more features . your program displays by page; no more 'warp 5 inch scrolling MULTIDOS 1.6 FOR MODEL I OR III IS ONLY $59.95.
Screen shot

MultiDOS v1.6aP [Pseudo Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1983 · DMK

md116apm.zip

NEW LOW PRICE ON MULTIDOS 1.6 . ONLY $59.95 inch every DOS I've tried has either been too slow and weak or too complicated and powerful for me to use. I feel sure that many other people have this same problem, and MULTIDOS is certainly the solution.' Tim Knight in InfoWorld . If you have many disk formats, MULTIDOS is for you: it reads Mod I&III LDOS, Mod I TRSDOS, Mod I&III NEWDOS 80, Mod I&III DOSPLUS, TRSDOS 6 and DOSPLUS 4; writes to Mod I&III LDOS, Mod I TRSDOS, Mod I&III NEWDOS 80, Mod I&III DOSPLUS, TRSDOS 6 and DOSPLUS 4. Utility programs lets you read Model III TRSDOS disks and convert the address marks on Mod I TRSDOS disks . VFU utility lets you COPY, PURGE, or MOVE files by displaying a directory and letting you mark files with the cursor; even copies and moves FROM DATA DISK TO DATA DISK with two drives and from one DOS to another! use multiple commands on one line . fastest BACKUP and COPY; use with one or two drives . auto density and track recognition; no more PDRIVE hassle . on-screen HELP with 40 different library commands . alphabetized directory MULTIDOS' SUPER BASIC ADDS MANY ENHANCEMENTS . leaves over 40K of memory free . combine program lines, delete spaces with packer . incorporates BOSS debugging utility . intelligent global editor . many more features . your program displays by page; no more 'warp 5 inch scrolling MULTIDOS 1.6 FOR MODEL I OR III IS ONLY $59.95.
Screen shot

MultiDOS v1.6aS [Single Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1983 · DMK

md116asm.zip

NEW LOW PRICE ON MULTIDOS 1.6 . ONLY $59.95 inch every DOS I've tried has either been too slow and weak or too complicated and powerful for me to use. I feel sure that many other people have this same problem, and MULTIDOS is certainly the solution.' Tim Knight in InfoWorld . If you have many disk formats, MULTIDOS is for you: it reads Mod I&III LDOS, Mod I TRSDOS, Mod I&III NEWDOS 80, Mod I&III DOSPLUS, TRSDOS 6 and DOSPLUS 4; writes to Mod I&III LDOS, Mod I TRSDOS, Mod I&III NEWDOS 80, Mod I&III DOSPLUS, TRSDOS 6 and DOSPLUS 4. Utility programs lets you read Model III TRSDOS disks and convert the address marks on Mod I TRSDOS disks . VFU utility lets you COPY, PURGE, or MOVE files by displaying a directory and letting you mark files with the cursor; even copies and moves FROM DATA DISK TO DATA DISK with two drives and from one DOS to another! use multiple commands on one line . fastest BACKUP and COPY; use with one or two drives . auto density and track recognition; no more PDRIVE hassle . on-screen HELP with 40 different library commands . alphabetized directory MULTIDOS' SUPER BASIC ADDS MANY ENHANCEMENTS . leaves over 40K of memory free . combine program lines, delete spaces with packer . incorporates BOSS debugging utility . intelligent global editor . many more features . your program displays by page; no more 'warp 5 inch scrolling MULTIDOS 1.6 FOR MODEL I OR III IS ONLY $59.95.
Screen shot

MultiDOS v1.6c

Vernon B Hester / Cosmopolitan Electronics Corp

M3 · 1982 · DMK

mds3160c.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
Screen shot

MultiDOS v1.6d

Vernon B Hester / Cosmopolitan Electronics Corp

M3 · 1982 · DMK

mds3160d.zip

NEW LOW PRICE ON MULTIDOS 1.6 . ONLY $59.95 inch every DOS I've tried has either been too slow and weak or too complicated and powerful for me to use. I feel sure that many other people have this same problem, and MULTIDOS is certainly the solution.' Tim Knight in InfoWorld . If you have many disk formats, MULTIDOS is for you: it reads Mod I&III LDOS, Mod I TRSDOS, Mod I&III NEWDOS 80, Mod I&III DOSPLUS, TRSDOS 6 and DOSPLUS 4; writes to Mod I&III LDOS, Mod I TRSDOS, Mod I&III NEWDOS 80, Mod I&III DOSPLUS, TRSDOS 6 and DOSPLUS 4. Utility programs lets you read Model III TRSDOS disks and convert the address marks on Mod I TRSDOS disks . VFU utility lets you COPY, PURGE, or MOVE files by displaying a directory and letting you mark files with the cursor; even copies and moves FROM DATA DISK TO DATA DISK with two drives and from one DOS to another! use multiple commands on one line . fastest BACKUP and COPY; use with one or two drives . auto density and track recognition; no more PDRIVE hassle . on-screen HELP with 40 different library commands . alphabetized directory MULTIDOS' SUPER BASIC ADDS MANY ENHANCEMENTS . leaves over 40K of memory free . combine program lines, delete spaces with packer . incorporates BOSS debugging utility . intelligent global editor . many more features . your program displays by page; no more 'warp 5 inch scrolling MULTIDOS 1.6 FOR MODEL I OR III IS ONLY $59.95.
Screen shot

MultiDOS v1.6D [Double Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1982 · DMK

md1160dm.zip

NEW LOW PRICE ON MULTIDOS 1.6 . ONLY $59.95 inch every DOS I've tried has either been too slow and weak or too complicated and powerful for me to use. I feel sure that many other people have this same problem, and MULTIDOS is certainly the solution.' Tim Knight in InfoWorld . If you have many disk formats, MULTIDOS is for you: it reads Mod I&III LDOS, Mod I TRSDOS, Mod I&III NEWDOS 80, Mod I&III DOSPLUS, TRSDOS 6 and DOSPLUS 4; writes to Mod I&III LDOS, Mod I TRSDOS, Mod I&III NEWDOS 80, Mod I&III DOSPLUS, TRSDOS 6 and DOSPLUS 4. Utility programs lets you read Model III TRSDOS disks and convert the address marks on Mod I TRSDOS disks . VFU utility lets you COPY, PURGE, or MOVE files by displaying a directory and letting you mark files with the cursor; even copies and moves FROM DATA DISK TO DATA DISK with two drives and from one DOS to another! use multiple commands on one line . fastest BACKUP and COPY; use with one or two drives . auto density and track recognition; no more PDRIVE hassle . on-screen HELP with 40 different library commands . alphabetized directory MULTIDOS' SUPER BASIC ADDS MANY ENHANCEMENTS . leaves over 40K of memory free . combine program lines, delete spaces with packer . incorporates BOSS debugging utility . intelligent global editor . many more features . your program displays by page; no more 'warp 5 inch scrolling MULTIDOS 1.6 FOR MODEL I OR III IS ONLY $59.95.
Screen shot

MultiDOS v1.6K [Custom for Merlin Mag-80]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1983 · DMK

mds16kmm.zip

NEW LOW PRICE ON MULTIDOS 1.6 . ONLY $59.95 inch every DOS I've tried has either been too slow and weak or too complicated and powerful for me to use. I feel sure that many other people have this same problem, and MULTIDOS is certainly the solution.' Tim Knight in InfoWorld . If you have many disk formats, MULTIDOS is for you: it reads Mod I&III LDOS, Mod I TRSDOS, Mod I&III NEWDOS 80, Mod I&III DOSPLUS, TRSDOS 6 and DOSPLUS 4; writes to Mod I&III LDOS, Mod I TRSDOS, Mod I&III NEWDOS 80, Mod I&III DOSPLUS, TRSDOS 6 and DOSPLUS 4. Utility programs lets you read Model III TRSDOS disks and convert the address marks on Mod I TRSDOS disks . VFU utility lets you COPY, PURGE, or MOVE files by displaying a directory and letting you mark files with the cursor; even copies and moves FROM DATA DISK TO DATA DISK with two drives and from one DOS to another! use multiple commands on one line . fastest BACKUP and COPY; use with one or two drives . auto density and track recognition; no more PDRIVE hassle . on-screen HELP with 40 different library commands . alphabetized directory MULTIDOS' SUPER BASIC ADDS MANY ENHANCEMENTS . leaves over 40K of memory free . combine program lines, delete spaces with packer . incorporates BOSS debugging utility . intelligent global editor . many more features . your program displays by page; no more 'warp 5 inch scrolling MULTIDOS 1.6 FOR MODEL I OR III IS ONLY $59.95.
Screen shot

MultiDOS v1.6P [Pseudo Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1982 · DMK

md1160pm.zip

NEW LOW PRICE ON MULTIDOS 1.6 . ONLY $59.95 inch every DOS I've tried has either been too slow and weak or too complicated and powerful for me to use. I feel sure that many other people have this same problem, and MULTIDOS is certainly the solution.' Tim Knight in InfoWorld . If you have many disk formats, MULTIDOS is for you: it reads Mod I&III LDOS, Mod I TRSDOS, Mod I&III NEWDOS 80, Mod I&III DOSPLUS, TRSDOS 6 and DOSPLUS 4; writes to Mod I&III LDOS, Mod I TRSDOS, Mod I&III NEWDOS 80, Mod I&III DOSPLUS, TRSDOS 6 and DOSPLUS 4. Utility programs lets you read Model III TRSDOS disks and convert the address marks on Mod I TRSDOS disks . VFU utility lets you COPY, PURGE, or MOVE files by displaying a directory and letting you mark files with the cursor; even copies and moves FROM DATA DISK TO DATA DISK with two drives and from one DOS to another! use multiple commands on one line . fastest BACKUP and COPY; use with one or two drives . auto density and track recognition; no more PDRIVE hassle . on-screen HELP with 40 different library commands . alphabetized directory MULTIDOS' SUPER BASIC ADDS MANY ENHANCEMENTS . leaves over 40K of memory free . combine program lines, delete spaces with packer . incorporates BOSS debugging utility . intelligent global editor . many more features . your program displays by page; no more 'warp 5 inch scrolling MULTIDOS 1.6 FOR MODEL I OR III IS ONLY $59.95.
Screen shot

MultiDOS v1.6S [Double Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1982 · DMK

md1160sm.zip

NEW LOW PRICE ON MULTIDOS 1.6 . ONLY $59.95 inch every DOS I've tried has either been too slow and weak or too complicated and powerful for me to use. I feel sure that many other people have this same problem, and MULTIDOS is certainly the solution.' Tim Knight in InfoWorld . If you have many disk formats, MULTIDOS is for you: it reads Mod I&III LDOS, Mod I TRSDOS, Mod I&III NEWDOS 80, Mod I&III DOSPLUS, TRSDOS 6 and DOSPLUS 4; writes to Mod I&III LDOS, Mod I TRSDOS, Mod I&III NEWDOS 80, Mod I&III DOSPLUS, TRSDOS 6 and DOSPLUS 4. Utility programs lets you read Model III TRSDOS disks and convert the address marks on Mod I TRSDOS disks . VFU utility lets you COPY, PURGE, or MOVE files by displaying a directory and letting you mark files with the cursor; even copies and moves FROM DATA DISK TO DATA DISK with two drives and from one DOS to another! use multiple commands on one line . fastest BACKUP and COPY; use with one or two drives . auto density and track recognition; no more PDRIVE hassle . on-screen HELP with 40 different library commands . alphabetized directory MULTIDOS' SUPER BASIC ADDS MANY ENHANCEMENTS . leaves over 40K of memory free . combine program lines, delete spaces with packer . incorporates BOSS debugging utility . intelligent global editor . many more features . your program displays by page; no more 'warp 5 inch scrolling MULTIDOS 1.6 FOR MODEL I OR III IS ONLY $59.95.
Screen shot

MultiDOS v1.6S [Single Density]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1982 · DMK

md116ssd.zip

NEW LOW PRICE ON MULTIDOS 1.6 . ONLY $59.95 inch every DOS I've tried has either been too slow and weak or too complicated and powerful for me to use. I feel sure that many other people have this same problem, and MULTIDOS is certainly the solution.' Tim Knight in InfoWorld . If you have many disk formats, MULTIDOS is for you: it reads Mod I&III LDOS, Mod I TRSDOS, Mod I&III NEWDOS 80, Mod I&III DOSPLUS, TRSDOS 6 and DOSPLUS 4; writes to Mod I&III LDOS, Mod I TRSDOS, Mod I&III NEWDOS 80, Mod I&III DOSPLUS, TRSDOS 6 and DOSPLUS 4. Utility programs lets you read Model III TRSDOS disks and convert the address marks on Mod I TRSDOS disks . VFU utility lets you COPY, PURGE, or MOVE files by displaying a directory and letting you mark files with the cursor; even copies and moves FROM DATA DISK TO DATA DISK with two drives and from one DOS to another! use multiple commands on one line . fastest BACKUP and COPY; use with one or two drives . auto density and track recognition; no more PDRIVE hassle . on-screen HELP with 40 different library commands . alphabetized directory MULTIDOS' SUPER BASIC ADDS MANY ENHANCEMENTS . leaves over 40K of memory free . combine program lines, delete spaces with packer . incorporates BOSS debugging utility . intelligent global editor . many more features . your program displays by page; no more 'warp 5 inch scrolling MULTIDOS 1.6 FOR MODEL I OR III IS ONLY $59.95.
Screen shot

MultiDOS v1.7 [Model III Mode][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M4P · 1984 · DMK

mds3174p.zip

MULTIDOS For Your TRS-80 Model I and Model III Most EFFICIENT Disk Basic Interpreter! A true Z-80 Basic. Others claim to have a NEW Basic, but their cumbersome archaic code cannot measure up to the speed and size of SUPER-BASIC. Seeing Is Believing! Most COMPATIBLE Operating System! Model III MULTIDOS will Automatically Read (without reconfiguring system between reads -without modifying source media) MULTIDOS Model I Single Density LDOS Model I Single Density MULTIDOS Model I P Density LDOS Model I Double Density MULTIDOS Model I Double Density LDOS Model III DOSPLUS Model I Double Density NEWDOS/80 Model I Double Density (unadulterated) DOSPLUS Model III NEWDOS/80 Model III (unadulterated) PERCOM DBLDOS UTILITY TO READ TRSDOS MODEL III, VERSION 1.3. Other Model I Single Density Operating Systems Must Be Altered (via System Utility) To Be Read By MULTIDOS Model III. MULTIDOS Model I Doesn't Care! It Just Reads 'Em. (Hardware Modification Required To Read Double Density Diskettes) Most PORTABILITY Mix & Match Model I and Model III MULTIDOS Diskettes. - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $15.00 Cosmopolitan Electronics Corporation P.O. BOX 234 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - For Model I Orders Only Please Specify Single, Double or P Density. Cosmopolitan Electronics Corporation C/O VERNON B. HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax COD Orders Add $1.50 Personal Checks Take 2 Weeks To Clear
Screen shot

MultiDOS v1.7 [Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M3 · 1984 · DMK

mds3170m.zip

MULTIDOS For Your TRS-80 Model I and Model III Most EFFICIENT Disk Basic Interpreter! A true Z-80 Basic. Others claim to have a NEW Basic, but their cumbersome archaic code cannot measure up to the speed and size of SUPER-BASIC. Seeing Is Believing! Most COMPATIBLE Operating System! Model III MULTIDOS will Automatically Read (without reconfiguring system between reads -without modifying source media) MULTIDOS Model I Single Density LDOS Model I Single Density MULTIDOS Model I P Density LDOS Model I Double Density MULTIDOS Model I Double Density LDOS Model III DOSPLUS Model I Double Density NEWDOS/80 Model I Double Density (unadulterated) DOSPLUS Model III NEWDOS/80 Model III (unadulterated) PERCOM DBLDOS UTILITY TO READ TRSDOS MODEL III, VERSION 1.3. Other Model I Single Density Operating Systems Must Be Altered (via System Utility) To Be Read By MULTIDOS Model III. MULTIDOS Model I Doesn't Care! It Just Reads 'Em. (Hardware Modification Required To Read Double Density Diskettes) Most PORTABILITY Mix & Match Model I and Model III MULTIDOS Diskettes. - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $15.00 Cosmopolitan Electronics Corporation P.O. BOX 234 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - For Model I Orders Only Please Specify Single, Double or P Density. Cosmopolitan Electronics Corporation C/O VERNON B. HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax COD Orders Add $1.50 Personal Checks Take 2 Weeks To Clear
Screen shot

MultiDOS v1.7.0

Vernon B Hester / Cosmopolitan Electronics Corp

M3 · 1984 · DMK

muv170vb.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
Screen shot

MultiDOS v1.7.1

Vernon B Hester / Cosmopolitan Electronics Corp

M4 · 1985 · DMK

mds4171a.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
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MultiDOS v1.7.1

Vernon B Hester / Cosmopolitan Electronics Corp

M3 · 1985 · DMK

muv171vb.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
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MultiDOS v1.71 [Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M3 · 1985 · DMK

mds3171m.zip

MULTIDOS For Your TRS-80 Model I and Model III Most EFFICIENT Disk Basic Interpreter! A true Z-80 Basic. Others claim to have a NEW Basic, but their cumbersome archaic code cannot measure up to the speed and size of SUPER-BASIC. Seeing Is Believing! Most COMPATIBLE Operating System! Model III MULTIDOS will Automatically Read (without reconfiguring system between reads -without modifying source media) MULTIDOS Model I Single Density LDOS Model I Single Density MULTIDOS Model I P Density LDOS Model I Double Density MULTIDOS Model I Double Density LDOS Model III DOSPLUS Model I Double Density NEWDOS/80 Model I Double Density (unadulterated) DOSPLUS Model III NEWDOS/80 Model III (unadulterated) PERCOM DBLDOS UTILITY TO READ TRSDOS MODEL III, VERSION 1.3. Other Model I Single Density Operating Systems Must Be Altered (via System Utility) To Be Read By MULTIDOS Model III. MULTIDOS Model I Doesn't Care! It Just Reads 'Em. (Hardware Modification Required To Read Double Density Diskettes) Most PORTABILITY Mix & Match Model I and Model III MULTIDOS Diskettes. - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $15.00 Cosmopolitan Electronics Corporation P.O. BOX 234 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - For Model I Orders Only Please Specify Single, Double or P Density. Cosmopolitan Electronics Corporation C/O VERNON B. HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax COD Orders Add $1.50 Personal Checks Take 2 Weeks To Clear
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MultiDOS v1.71S [Single Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1984 · DMK

mds1171s.zip

MULTIDOS For Your TRS-80 Model I and Model III Most EFFICIENT Disk Basic Interpreter! A true Z-80 Basic. Others claim to have a NEW Basic, but their cumbersome archaic code cannot measure up to the speed and size of SUPER-BASIC. Seeing Is Believing! Most COMPATIBLE Operating System! Model III MULTIDOS will Automatically Read (without reconfiguring system between reads -without modifying source media) MULTIDOS Model I Single Density LDOS Model I Single Density MULTIDOS Model I P Density LDOS Model I Double Density MULTIDOS Model I Double Density LDOS Model III DOSPLUS Model I Double Density NEWDOS/80 Model I Double Density (unadulterated) DOSPLUS Model III NEWDOS/80 Model III (unadulterated) PERCOM DBLDOS UTILITY TO READ TRSDOS MODEL III, VERSION 1.3. Other Model I Single Density Operating Systems Must Be Altered (via System Utility) To Be Read By MULTIDOS Model III. MULTIDOS Model I Doesn't Care! It Just Reads 'Em. (Hardware Modification Required To Read Double Density Diskettes) Most PORTABILITY Mix & Match Model I and Model III MULTIDOS Diskettes. - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $15.00 Cosmopolitan Electronics Corporation P.O. BOX 234 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - For Model I Orders Only Please Specify Single, Double or P Density. Cosmopolitan Electronics Corporation C/O VERNON B. HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax COD Orders Add $1.50 Personal Checks Take 2 Weeks To Clear
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MultiDOS v1.7c

Cosmopolitan Electronics Corp

M7 · IMD

mld17cm8.zip

GOD CREATED THE WORLD IN SIX DAYS THEN RESTED WE AT COSMOPOLITAN CONTINUE We work round the clock to bring you the finest utility programs in the world. MULTIDOS MAX-80 SUPERBASIC has grown again. Has an unpacker as well as a packer for BASIC programs. Dynamically changes string space without using variables. Unbelievably enhanced BOSS trace function displays instruction before it is executed. More shorthand commands. Complete LABEL support. Intelligent premature exit from FOR-NEXT loops. Has eleven additional key word commands. 'Break' key as well as error trapping and still leaves the user with an incredible 42K bytes of free memory! MOD 4 BASIC PROGRAMMERS, EAT YOUR HEART OUT.' Introductory Price $99.95 COSMOPOLITAN ELECTRONICS CORPORATION 5700 Plymouth Road Ann Arbor, MI 48105 Orders: (313) 668-6660 Hours: Closed Mondays - Tuesday, Wednesday, Friday 10-5 Thursday 10-3 - Saturday 1-6 Add $3.00 shipping & handling. Foreign orders add $15.00. Michigan residents add 4% sales tax. Personal checks take two weeks to clear. Visa & Mastercard accepted C.O.D. add $1.65.
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MultiDOS v1.7D [Double Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1984 · DMK

mud17dvb.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
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MultiDOS v1.7P [P-Density][80 Track]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1984 · DMK

mds117p8.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
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MultiDOS v1.7P [Pseudo Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1984 · DMK

mds117pm.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
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MultiDOS v1.7S [Single Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1984 · DMK

mds117sm.zip

MULTIDOS For Your TRS-80 Model I and Model III Most EFFICIENT Disk Basic Interpreter! A true Z-80 Basic. Others claim to have a NEW Basic, but their cumbersome archaic code cannot measure up to the speed and size of SUPER-BASIC. Seeing Is Believing! Most COMPATIBLE Operating System! Model III MULTIDOS will Automatically Read (without reconfiguring system between reads -without modifying source media) MULTIDOS Model I Single Density LDOS Model I Single Density MULTIDOS Model I P Density LDOS Model I Double Density MULTIDOS Model I Double Density LDOS Model III DOSPLUS Model I Double Density NEWDOS/80 Model I Double Density (unadulterated) DOSPLUS Model III NEWDOS/80 Model III (unadulterated) PERCOM DBLDOS UTILITY TO READ TRSDOS MODEL III, VERSION 1.3. Other Model I Single Density Operating Systems Must Be Altered (via System Utility) To Be Read By MULTIDOS Model III. MULTIDOS Model I Doesn't Care! It Just Reads 'Em. (Hardware Modification Required To Read Double Density Diskettes) Most PORTABILITY Mix & Match Model I and Model III MULTIDOS Diskettes. - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $15.00 Cosmopolitan Electronics Corporation P.O. BOX 234 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - For Model I Orders Only Please Specify Single, Double or P Density. Cosmopolitan Electronics Corporation C/O VERNON B. HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax COD Orders Add $1.50 Personal Checks Take 2 Weeks To Clear
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MultiDOS v2.0.0

Vernon B Hester / Cosmopolitan Electronics Corp

M4 · 1987 · DMK

muv200vb.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
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MultiDOS v2.00 [Double Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1986 · DMK

mds1200m.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v2.00 [Model III Mode][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M4P · 1986 · DMK

mds3204p.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v2.00 [Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M3 · 1986 · DMK

mds3200m.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v2.1.0

Vernon B Hester / Cosmopolitan Electronics Corp

M4 · 1987 · DMK

muv210vb.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
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MultiDOS v2.1.0 [Double Sided]

Vernon B Hester / Cosmopolitan Electronics Corp

M4 · 1987 · DMK

mds4210d.zip

What Did You Buy Your TRS-80 Computer For? Probably To Make Things Easier. Well, shouldn't the software you purchase unleash all the power of your computer! Why spend hours configuring your system to do the things Multidos does automatically? MULTIDOS AUTOMATICALLY INTERPRETS READS a single key stroke to get a directory from the 'DOS READY' mode. standard purchased copies of DBLDOS, DOSPLUS, LDOS, NEWDOS/80, and TRSDOS. MODEL III and MODEL I - SINGLE and DOUBLE DENSITY COMPENSATES DISPLAYS for CPU speeds of 1.77 MHz to 5.32 MHz even during DISK I/O. the DIRECTORY (alphabetically) on the target diskette after a menu driven PURGE or COPY. SENSES CHECKS the extra lowercase RAM chip and self-modifies to give you lowercase. (MODEL I) for the same LRL before appending files. EXECUTES a machine language program under the control of DEBUG. DETERMINES if sufficient free space is present on the destination diskette before any writes are made during COPY. CALCULATES an effective TOPMEM for 100% complete DOS command execution from within BASIC. MAINTAINS the DATE on simple re-boots. PREVENTS a system hand - even without a diskette in drive zero. DISABLES interrupts when CLOAD, CSAVE, or SYSTEM is keyed in. (MODEL I) TOTALS the free space on all mounted diskettes. DUMPS graphics without any patches or system options. AUTOMATICALLY AUTOMATICALLY AUTOMATICALLY Coming Soon: 'EASY ZAP'! - MAIL ORDERS - VISA & MasterCard WELCOMED Foreign Orders Add $10.00 . For Model I Orders Only Please specify Single, Double or P Density. Cosmopolitan Electronics Corporation P.O. BOX 89 PLYMOUTH, MICHIGAN 48170 - TECHNICAL INFORMATION - Cosmopolitan Electronics Corporation C/O VERNON HESTER 42403 Old Bridge Road Canton, MI 48188 (313) 397-3126 $79.95 Plus $3.00 For Shipping & Handling Michigan Residents Add 4% Sales Tax C.O.D. Orders Add $1.50 Personal Checks Take 2 Weeks To Clear NOW AVAILABLE FROM ABC SALES 13349 Michigan Avenue Dearborn, Michigan 48126 (313) 561-2696 COMPUTER SHACK 1891 Eason Pontiac, Michigan 48054 (313) 673-2224 POWER SOFT 11500 Stemmons Expressway Dallas, Texas 75229 (214) 484-2976 BYTES & NAILS 5110 8th Avenue Sioux City, Iowa 51106 (712) 274-2348 SIMUTEK Computer Prod., Inc. 4877 East Speedway Tucson, AZ 85712 (602) 323-9391 MICRO PROG-80 P.O. Box 806 Sunsomeed, CA 96588 (714) 653-9429 58
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MultiDOS v2.10 [Double Density][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 1987 · DMK

mds1210m.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v2.10 [Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M3 · 1987 · DMK

mds3210m.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v4.01

Vernon B Hester / Cosmopolitan Electronics Corp

M3 · 2005 · DMK

mdos3401.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v4.01 [Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 2005 · DMK

mds1401m.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v4.01 [Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M3 · 2005 · DMK

mds3401m.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v5.00 [Double Sided][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M3 · 2014 · DMK

md53dsdd.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v5.00 [DSDD][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 2014 · DMK

md51dsdd.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v5.00 [Single Sided][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M3 · 2014 · DMK

md53ssdd.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v5.00 [SSDD][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 2014 · DMK

md51ssdd.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v5.00 [SSSD][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M1 · 2014 · DMK

md51sssd.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v5.10 [Double Sided Double Density][Original]

Vernon B Hester

M1 · 2022 · DMK

md5101ds.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v5.10 [Double Sided][Original]

Vernon B Hester

M3 · 2022 · DMK

md5103ds.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v5.10 [FreHD]

Vernon B Hester

M1 · 2023 · HDV

md5101fh.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v5.10 [FreHD]

Vernon B Hester

M3 · 2023 · HDV

md5103fh.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v5.10 [Single Sided Double Density][Original]

Vernon B Hester

M1 · 2022 · DMK

md5101sd.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v5.10 [Single Sided Single Density][Original]

Vernon B Hester

M1 · 2022 · DMK

md5101ss.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v5.10 [Single Sided][Original]

Vernon B Hester

M3 · 2022 · DMK

md5103ss.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v5.11

Vernon B Hester / Cosmopolitan Electronics Corp

M4 · 2005 · DMK

mdos4511.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v5.11 [Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M4 · 2005 · DMK

mds4511m.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v6.00 [Double Sided 40 Track][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M4 · 2021 · DMK

md64dsdd.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v6.00 [Double Sided 80 Track][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M4 · 2021 · DMK

md64dsd8.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v6.00 [Single Sided][Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M4 · 2021 · DMK

md64ssdd.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v6.20 [Double Sided][Original]

Vernon B Hester

M4 · 2022 · DMK

md6204ds.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v6.20 [Emulator Format][Original]

Vernon B Hester

M4 · 2023 · DMK

md6204em.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v6.20 [FreHD]

Vernon B Hester

M4 · 2023 · HDV

md6204fh.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS v6.20 [Single Sided][Original]

Vernon B Hester

M4 · 2022 · DMK

md6204ss.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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MultiDOS with High-Resolution BASIC v5.11 [Original]

Vernon B Hester / Cosmopolitan Electronics Corp

M4 · 2005 · DMK

mds451hr.zip

MULTIDOS Written by Vernon Hester MultIDos may be just about one of the most underrated Disk Operating Systems around for the TRS-80 Models I and III (and 4 in the Model III mode). It has just about every feature the average user would want in a DOS, and one big PLUS: MultIDos has the ability to read from and write to just about every other disk format used by other popular TRS-80 disk operating systems, and it can detect the alien format AUTOMATICALLY. If you have an 'unknown' disk that you know was created on a TRS-80, but you're not sure which operating system was used, just let MultIDos try and read it. Most of the time, MultIDos will be able to read from it and write to it. While other utilities may have similar capabilities, it is very convenient to not have to boot up a separate utility in order to move a file. MultIDos is invaluable when working with a variety of operating systems, including TRSDOS 6.x. Best of all, list price of MultIDos is now only $59.95. This is not a kernal, but a full featured Multidos with all utilities. Please specify whether you wish the Model I or Model III version.
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Multikey Editor v1.1

Dr Jakub Szajman

M1 · CMA

mltkey11.zip

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Multil [Multiplication Quiz]

Author Unknown

M1 · BAS

multilqz.zip

Advertisement

Multilinear RegressionMISSING

Dynacomp

M13

MULTILINEAR REGRESSION (available for all computers) This is the third program in the DYNACOMP statistics series. Whereas REGRESSION I and REGRESSION II (PARAFIT) are designed for analyzing bivariate data, MLR is capable of treating multi-variate situations with no limit (other than available computer memory) on the number of dimensions. The general form of the equation fitted will be $$Y = af_1(X_1) + bf_2(X_2) + cf_3(X_3) + ext{etc.}$$ The variables are the X1. The regressed coefficients are a, b, c, etc. The functional forms, f1(X1), may be virtually anything. MLR automatically offers a choice of nine mathematical forms, including the logarithm and exponential, as well as the simple default f1(X1) = X1. In addition, the user may replace the default form with his own function. These choices can be independently made for each dimension. The data input to MLR may be either from the keyboard or from cassette/disk files. Data may be loaded, saved, added to, deleted, and generally edited using the convenient data manipulation procedures provided. The number of data points is limited only by the computer memory available. The outputs from MLR are the regression coefficients and the standard error associated with these coefficients. Such error estimates are very useful, but often neglected by regression programs. MLR also supplies the standard error of the estimate for the fit and the correlation coefficient. Finally, MLR offers the opportunity to use the regressed equation to calculate values along the fitted hyper-curve. Operationally, MLR employs two distinctly different methods for finding the regression coefficients. The first method uses matrix algebra techniques and is quite fast. The second method utilizes a very stable form of steepest descent optimization. This second approach is much slower in execution, but requires significantly less computer memory and can handle 'ill-conditioned' situations with high accuracy. Also, with this technique, the fit is made one dimension at a time, and the coefficients and standard error of the fit are displayed at each step. MLR is supplied with a 16 page manual which carefully outlines program operation. Requires at least 16K of program memory (Atari version requires at least 24K). Price: $24.95 Cassette $28.95 Diskette $31.45 8 inch CP/M Disk
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MultiPlan v1.04

Microsoft

M8 · 1981 · DMK

mpln104a.zip

MICROSOFT Multiplan Description: An incredibly easy-to-use decision-making tool. Ideal for profit and loss projections, budgeting and sales forecasts. This popular 'second-generation' spreadsheet lets you consolidate related worksheets so that information is transferred between them automatically. You can assign plain-English names to any column, cell or area, vary individual column widths, center numbers and text within a column or align decimals. Sorting can be performed in alphabetical or numerical order, Cells can be set up individually, by row, column, block-or globally. Displays up to eight windows on the screen. Includes on-line help and a tutorial manual. Multiplan can directly utilize your current VisiCalc files. Multi-user version available for the Tandy 6000. Hardware Requirements: Tandy 1000-256K. Support: Radio Shack. Model 4. 26-1530 199.00
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MultiPlan v1.05

Microsoft

M8 · 1981 · COM

mpl105c1.zip

MICROSOFT Multiplan Description: An incredibly easy-to-use decision-making tool. Ideal for profit and loss projections, budgeting and sales forecasts. This popular 'second-generation' spreadsheet lets you consolidate related worksheets so that information is transferred between them automatically. You can assign plain-English names to any column, cell or area, vary individual column widths, center numbers and text within a column or align decimals. Sorting can be performed in alphabetical or numerical order, Cells can be set up individually, by row, column, block-or globally. Displays up to eight windows on the screen. Includes on-line help and a tutorial manual. Multiplan can directly utilize your current VisiCalc files. Multi-user version available for the Tandy 6000. Hardware Requirements: Tandy 1000-256K. Support: Radio Shack. Model 4. 26-1530 199.00
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MultiPlan v1.05

Microsoft

M8 · 1981 · DMK

mpl105c2.zip

MICROSOFT Multiplan Description: An incredibly easy-to-use decision-making tool. Ideal for profit and loss projections, budgeting and sales forecasts. This popular 'second-generation' spreadsheet lets you consolidate related worksheets so that information is transferred between them automatically. You can assign plain-English names to any column, cell or area, vary individual column widths, center numbers and text within a column or align decimals. Sorting can be performed in alphabetical or numerical order, Cells can be set up individually, by row, column, block-or globally. Displays up to eight windows on the screen. Includes on-line help and a tutorial manual. Multiplan can directly utilize your current VisiCalc files. Multi-user version available for the Tandy 6000. Hardware Requirements: Tandy 1000-256K. Support: Radio Shack. Model 4. 26-1530 199.00
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Multiplan v1.06

Microsoft

M8 · 1981 · COM

mpl106c1.zip

E: An incredibly easy-to-use decision-making tool that supports 128K memory for larger spreadsheets. Multiplan lets you consolidate related worksheets so that information is transferred between them automatically. All prompts are full length words or phrases. Plain English names can be assigned to any column, cell or area. If you have any questions, an On-Line Reference Guide knows where you are in Multiplan and offers information related to your problem. With Multiplan, up to eight display windows can be created on the screen simultaneously. Sorting can be performed in alphabetical or numeric order. Vary individual column widths, center numbers and text within a column and align decimals. Format your own reports, too. Multiplan can also directly utilize your current VisiCalc files. Includes tutorial manual. 26-1530 199.00
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Multiplan v1.06

Microsoft

M8 · 1981 · DMK

mpl106c2.zip

E: An incredibly easy-to-use decision-making tool that supports 128K memory for larger spreadsheets. Multiplan lets you consolidate related worksheets so that information is transferred between them automatically. All prompts are full length words or phrases. Plain English names can be assigned to any column, cell or area. If you have any questions, an On-Line Reference Guide knows where you are in Multiplan and offers information related to your problem. With Multiplan, up to eight display windows can be created on the screen simultaneously. Sorting can be performed in alphabetical or numeric order. Vary individual column widths, center numbers and text within a column and align decimals. Format your own reports, too. Multiplan can also directly utilize your current VisiCalc files. Includes tutorial manual. 26-1530 199.00
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Multiplan v1.06

Microsoft

M4 · 1982 · DMK

mpln106d.zip

E: An incredibly easy-to-use decision-making tool that supports 128K memory for larger spreadsheets. Multiplan lets you consolidate related worksheets so that information is transferred between them automatically. All prompts are full length words or phrases. Plain English names can be assigned to any column, cell or area. If you have any questions, an On-Line Reference Guide knows where you are in Multiplan and offers information related to your problem. With Multiplan, up to eight display windows can be created on the screen simultaneously. Sorting can be performed in alphabetical or numeric order. Vary individual column widths, center numbers and text within a column and align decimals. Format your own reports, too. Multiplan can also directly utilize your current VisiCalc files. Includes tutorial manual. 26-1530 199.00
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Multiplan v1.06 CP/M

Microsoft

M10 · 1982 · DMK

mpl106lg.zip

E: An incredibly easy-to-use decision-making tool that supports 128K memory for larger spreadsheets. Multiplan lets you consolidate related worksheets so that information is transferred between them automatically. All prompts are full length words or phrases. Plain English names can be assigned to any column, cell or area. If you have any questions, an On-Line Reference Guide knows where you are in Multiplan and offers information related to your problem. With Multiplan, up to eight display windows can be created on the screen simultaneously. Sorting can be performed in alphabetical or numeric order. Vary individual column widths, center numbers and text within a column and align decimals. Format your own reports, too. Multiplan can also directly utilize your current VisiCalc files. Includes tutorial manual. 26-1530 199.00
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Multiplan v1.06 [Original]

Microsoft + Radio Shack

M4 · 1982 · DMK

mpln106g.zip

E: An incredibly easy-to-use decision-making tool that supports 128K memory for larger spreadsheets. Multiplan lets you consolidate related worksheets so that information is transferred between them automatically. All prompts are full length words or phrases. Plain English names can be assigned to any column, cell or area. If you have any questions, an On-Line Reference Guide knows where you are in Multiplan and offers information related to your problem. With Multiplan, up to eight display windows can be created on the screen simultaneously. Sorting can be performed in alphabetical or numeric order. Vary individual column widths, center numbers and text within a column and align decimals. Format your own reports, too. Multiplan can also directly utilize your current VisiCalc files. Includes tutorial manual. 26-1530 199.00
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Multiplan v1.06 [Set 1]

Microsoft

M4 · 1982 · CMD

mpln106a.zip

E: An incredibly easy-to-use decision-making tool that supports 128K memory for larger spreadsheets. Multiplan lets you consolidate related worksheets so that information is transferred between them automatically. All prompts are full length words or phrases. Plain English names can be assigned to any column, cell or area. If you have any questions, an On-Line Reference Guide knows where you are in Multiplan and offers information related to your problem. With Multiplan, up to eight display windows can be created on the screen simultaneously. Sorting can be performed in alphabetical or numeric order. Vary individual column widths, center numbers and text within a column and align decimals. Format your own reports, too. Multiplan can also directly utilize your current VisiCalc files. Includes tutorial manual. 26-1530 199.00
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Multiplan v1.06 [Set 2]

Microsoft

M4 · 1982 · CMD

mpln106f.zip

E: An incredibly easy-to-use decision-making tool that supports 128K memory for larger spreadsheets. Multiplan lets you consolidate related worksheets so that information is transferred between them automatically. All prompts are full length words or phrases. Plain English names can be assigned to any column, cell or area. If you have any questions, an On-Line Reference Guide knows where you are in Multiplan and offers information related to your problem. With Multiplan, up to eight display windows can be created on the screen simultaneously. Sorting can be performed in alphabetical or numeric order. Vary individual column widths, center numbers and text within a column and align decimals. Format your own reports, too. Multiplan can also directly utilize your current VisiCalc files. Includes tutorial manual. 26-1530 199.00
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Multiplan v1.06 [Set 3]

Microsoft

M4 · 1982 · CMD

mpln106c.zip

E: An incredibly easy-to-use decision-making tool that supports 128K memory for larger spreadsheets. Multiplan lets you consolidate related worksheets so that information is transferred between them automatically. All prompts are full length words or phrases. Plain English names can be assigned to any column, cell or area. If you have any questions, an On-Line Reference Guide knows where you are in Multiplan and offers information related to your problem. With Multiplan, up to eight display windows can be created on the screen simultaneously. Sorting can be performed in alphabetical or numeric order. Vary individual column widths, center numbers and text within a column and align decimals. Format your own reports, too. Multiplan can also directly utilize your current VisiCalc files. Includes tutorial manual. 26-1530 199.00
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Multiplan v1.06 [Set 4]

Microsoft

M4 · 1982 · CMD

mpln106b.zip

E: An incredibly easy-to-use decision-making tool that supports 128K memory for larger spreadsheets. Multiplan lets you consolidate related worksheets so that information is transferred between them automatically. All prompts are full length words or phrases. Plain English names can be assigned to any column, cell or area. If you have any questions, an On-Line Reference Guide knows where you are in Multiplan and offers information related to your problem. With Multiplan, up to eight display windows can be created on the screen simultaneously. Sorting can be performed in alphabetical or numeric order. Vary individual column widths, center numbers and text within a column and align decimals. Format your own reports, too. Multiplan can also directly utilize your current VisiCalc files. Includes tutorial manual. 26-1530 199.00
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Multiplan v1.07 [Set 1][Original]

Microsoft

M4 · 1984 · DMK

mpln107m.zip

E: An incredibly easy-to-use decision-making tool that supports 128K memory for larger spreadsheets. Multiplan lets you consolidate related worksheets so that information is transferred between them automatically. All prompts are full length words or phrases. Plain English names can be assigned to any column, cell or area. If you have any questions, an On-Line Reference Guide knows where you are in Multiplan and offers information related to your problem. With Multiplan, up to eight display windows can be created on the screen simultaneously. Sorting can be performed in alphabetical or numeric order. Vary individual column widths, center numbers and text within a column and align decimals. Format your own reports, too. Multiplan can also directly utilize your current VisiCalc files. Includes tutorial manual. 26-1530 199.00
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