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

All A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0-9
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Mugwump [Part of BOARD GAMES-1]

Creative Computing

M1 · BAS

mugwmpcc.zip

Mugwump. Four friendly Mugwumps are hiding on a 10x10 grid. Can you find them all in ten moves?
Screen shot
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muLISP-80 [8080 Version Not TRS-80]

The Soft Warehouse

M8 · 1980 · COM

mulsp8cp.zip

muLISP-80 is an Artificial Intelligence Development System, including muSTAR utility package and sample programs. (CAT # 2-815) $200.00
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MULTI Extended Command Interpreter [Multiple Command Processor]

George D Madison

M4 · CMA

muexcogd.zip

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Multi Point Plotter [What is the Power]

Author Unknown

M4 · BAS

mlptplwp.zip

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Multi [Multiple Command Executor Separated by :::]

Robert Labenski

M1 · CMD

multiccc.zip

NO IMAGE

Multi-Base CalculatorMISSING

Scott Farley

M1

Converts hex, decimal, octal, and binary numbers to all 4 bases. Then allows add, subtract, multiply, or divide operations. Split octal is included, as is a LPRINT option. Capacity is 16 bits.<br>Price: $10.00
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Multi-Basic v01.00.00 [Set 1]

Alcor Systems

M4 · 1984 · CMD

mltbasc1.zip

Multi-Basic compiler for the model 1 or 3, or 4 using TRSDOS, LOOS, NEWDOS, DOSPLUS, or MULTIDOS; includes full screen text editor and advanced development package List Price ~~$250.00~~ Sale Price $89.95 Multi-Basic is a TRS-80 BASIC compatible compiler. The Model 4 version supports everything in the TRSDOS 6 BASIC interpreter except the COMMON statement. The same support is provided in the Model 1 and 3 versions so programs are portable. The CMD statement is the only statement from the Model 1 and 3 BASIC interpreters that is not supported. Multi-Basic also supports advanced language features like multi-line procedures and functions, recursion, and dynamic string management (no long pauses for garbage collection). Execution speed on the model 3 for 10 iterations of the prime number program published in Byte, Jan 83, page 286. BASIC Interpreter Multi-Basic 4570 secs. 89 secs. Special Bonus Buy one version for $89.95 and get versions for the other two models for only $21 each.
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Multi-Basic v01.00.00 [Set 2]

Alcor Systems

M4 · 1984 · CMD

mltbasc2.zip

Multi-Basic compiler for the model 1 or 3, or 4 using TRSDOS, LOOS, NEWDOS, DOSPLUS, or MULTIDOS; includes full screen text editor and advanced development package List Price ~~$250.00~~ Sale Price $89.95 Multi-Basic is a TRS-80 BASIC compatible compiler. The Model 4 version supports everything in the TRSDOS 6 BASIC interpreter except the COMMON statement. The same support is provided in the Model 1 and 3 versions so programs are portable. The CMD statement is the only statement from the Model 1 and 3 BASIC interpreters that is not supported. Multi-Basic also supports advanced language features like multi-line procedures and functions, recursion, and dynamic string management (no long pauses for garbage collection). Execution speed on the model 3 for 10 iterations of the prime number program published in Byte, Jan 83, page 286. BASIC Interpreter Multi-Basic 4570 secs. 89 secs. Special Bonus Buy one version for $89.95 and get versions for the other two models for only $21 each.
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Multi-Basic v01.00.01 [Original]

Alcor Systems

M4 · 1985 · DMK

mltbsc4a.zip

Multi-Basic compiler for the model 1 or 3, or 4 using TRSDOS, LOOS, NEWDOS, DOSPLUS, or MULTIDOS; includes full screen text editor and advanced development package List Price ~~$250.00~~ Sale Price $89.95 Multi-Basic is a TRS-80 BASIC compatible compiler. The Model 4 version supports everything in the TRSDOS 6 BASIC interpreter except the COMMON statement. The same support is provided in the Model 1 and 3 versions so programs are portable. The CMD statement is the only statement from the Model 1 and 3 BASIC interpreters that is not supported. Multi-Basic also supports advanced language features like multi-line procedures and functions, recursion, and dynamic string management (no long pauses for garbage collection). Execution speed on the model 3 for 10 iterations of the prime number program published in Byte, Jan 83, page 286. BASIC Interpreter Multi-Basic 4570 secs. 89 secs. Special Bonus Buy one version for $89.95 and get versions for the other two models for only $21 each.
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Multi-Basic v01.00.01 [TD Data Disk]

Alcor Systems

M3 · 1985 · DMK

mltbsc3a.zip

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Multi-Copy [35 Track][Original][Self Boot]

Breeze Computing + QSD

M1 · 1981 · DMK

m1mcp35m.zip

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Multi-Disk Copy III

Kim Watt

M3 · CMA

mldscp3a.zip

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Multi-Disk Copy III [Set 1][Original][Self Boot]

Kim Watt

M3 · DMK

m3mcp40m.zip

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Multi-Disk Copy III [Set 2]

Kim Watt

M3 · CMA

mldscp3b.zip

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Multi-Disk Copy III [Set 3]

Kim Watt

M3 · CMA

mldscp3c.zip

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Multi-Disk Copy III [Set 4]

Kim Watt

M3 · CMA

mldscp3d.zip

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Multi-Disk Copy III [Set 5]

Kim Watt

M3 · CMD

mldscp3e.zip

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Multi-Disk Copy III [Set 6]

Kim Watt

M3 · CMD

mldscp3f.zip

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Multi-Disk Copy III [Set 7]

Kim Watt

M3 · CMD

mldscp3g.zip

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Multi-Disk Copy Utility

Kim Watt

M1 · CMD

mldscput.zip

NO IMAGE

Multi-Feedback Active Filter DesignMISSING

William N Reining

M13

Design highpass, lowpass, and bandpass active filters. Select standard component tolerances or design with special components. A high level graphics package is supplied as well as printer support.<br>Price: $50.00
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Multi-Label Printing on Epson and Gemini

Ginaco

M4 · 1983 · BAS

mltlblep.zip

NO IMAGE

Multi-Memory Sectioning for Class UsageMISSING

Roger Fuller

M1

Don't waste class time on cassette. Computer runs in each of 6 separate memory sections. At end of class or end of day save all sections with a single command. You load everything back in as a system tape. Savetime<br>Price: $7.00
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Multi-Sort II

M L Hooper

M4 · BAS

mltsrtmh.zip

Advertisement

Multi-SoundMISSING

Innovative Penguin

M13

THE INNOVATIVE PENGUIN Presents FRED (the friendly robot educator) Appearing in SKETCH-A-SOUND A game that allows you to hear your drawings. What does the 1812 Overture sound like? MUL-TI-SOUND Teachers, Parents, Help at last! A painless multiplication drill! Watch for Fred and the Penguin as they continue to bring you programs that make dreary memorization into fun. Sound makes the difference! Check with your local computer store or send $14.95 for each 16K level 2 program to: THE INNOVATIVE PENGUIN 2320 Hampton Dr., Harvey, La. 70058 Dealer and educator inquiries invited.
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Multi-Tasking Environment [ND80]

Joe Horvath

M1 · CMD

mlttsken.zip

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Multi-Term [Set 1]

Robert S French

M4 · 1984 · CMA

mltrmrf1.zip

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Multi-Term [Set 2]

Robert S French

M4 · 1984 · CMA

mltrmrf2.zip

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Multibak Multiple Drive Backup v1.0

Micro-Systems Software

M1 · 1980 · CMD

multibak.zip

NEW FROM MICRO-SYSTEMS!!! Micro-Systems Software. now offers you two new, and powerful disk backup utilities, superback and multiback. Multiback is our new multiple backup program. It is specifically designed for smaller software houses, like ourselves, who don't have the giant diskette copying machines. It will make three backups of a single disk simultaneously. Simply insert the master diskette in drive zero, and blanks in drives one, two and three, press enter and this program will copy the first disk onto the other three. A real time-and-effort saver! Superback and multiback both retail for $19.95. To order, contact us at the address below. Micro Systems Software Inc Specializing in the Tandy Line 384 (305) 983-3390 5846 Funston Street Hollywood, FL 33023 TRS - 80 is a trademark of Tandy Corp. Doubler is a trademark of Percom Data Corp. Now available in Spanish
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MultiCMD v1.1 [Multiple Command Executor]

Frank Durda IV

M4 · 1990 · CMA

mumc11fd.zip

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Multicom File Transfer Software v4.1 [Send Receive Terminal Baud Exit]

James R Reed

M1 · CMD

multicom.zip

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MultiDir v2.0 [Disk Directory System]

Steve Spangler

M6 · 1983 · BAS

mltdr2ss.zip

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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
Screen shot

MultiDOS II [Incomplete][Dual Boot]

Vernon B Hester / Cosmopolitan Electronics Corp

M13 · 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
Screen shot

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
Screen shot

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 v1.2

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
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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
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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
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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
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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.
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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.
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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.
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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
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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.
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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.
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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
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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
Screen shot

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.
Screen shot

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.
Screen shot

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.
Screen shot

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.
Screen shot

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.
Screen shot

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.
Screen shot

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.
Screen shot

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.
Screen shot

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.
Screen shot

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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