Overview of This Site

This site is devoted to providing extensive information on the line of TRS-80 personal home computers, with a specific focus on the Model I, Model III, and Model 4. There is also SOME information on the Model 100/102, Model 200, Model 600, Color Computer, and Pocket Computer lines as well as Printers. Information from these links includes product descriptions, catalog numbers, pictures, prices, operations, hardware, software, etc.

You can also find utilities and information on how to read TRS-80 disks and how to read TRS-80 tapes on a modern PC, how to run them on a modern PC using a TRS-80 emulator, and utilities to manipulate the disk images and cassette images once you have them converted. I can even read your disks for you into a format which you can use in a TRS-80 emulator on your PC.

Other information on the site includes online reference manuals for Level II BASIC and NEWDOS/80, as well as information (and walk-throughs) for the Scott Adam’s adventures and tips/tricks/zaps/easter eggs. There are even utilities to play your old ORCH 80/85/90 files again!

There are pages devoted to TRS-80 DOS’s such as NEWDOS/80, DOSPLUS, MULTIDOS, and CP/M, as well as to Hacks for TRS-80 hardware, for Hardware Repair, and for Modern-Day Hardware which can substitute for TRS-80 Hardware.

Almost all of the magazine covers featured on this site also come with details about the issue, and the table of contents of the articles which were present. There are currently 200 pages to the site (not including news postings), so feel free to poke around.

You can even search through the TRS-80 Software Archive, the TRS-80 Magazine Tables of Contents, and the TRS-80 Catalogs.

Do you have real TRS-80 disks just lying around? LET ME RESCUE THEM

While TRS-80 disks were not made to hold data for 35 years, the data is most likely still there if the disks were stored properly. However, that is a big “if”.

If you have TRS-80 Model I, III or 4 disks lying around, please contact me. I can read those diskettes into a format which can then be used on modern PC’s running emulators (letting you re-live your memories). This will also preserve your collection!

I do NOT charge for this and put together this FAQ for those interested.

Free Services and Goodies

Do you have a real TRS-80 and need disks? Click here to request.

Are you a copyright holder? If you didn’t give me permission to host your property, then your property is NOT available for download on this site. However, if you are willing to allow it to be, please contact me!

Do you want a real TRS-80? The prices on eBay are overinflated. Many times people just give away TRS-80’s to a good home. Click here to see current listings.

Want to use an emulated TRS-80 RIGHT NOW? Click here.


  1. It’s time to dispose of some stuff in the attic and I Goggled just to see if anyone else is doing the same. I guess there are. I wonder what happens if I post a comment, and I guess I will. JB

  2. Looking to obtain a working Model III with some minimal disks, etc. I am a BASIC (XB) programmer on the TI-99/4A and would LOVE to add Model 3 to my collection… Maybe port a few of my own games to the system. 🙂

    Like this site alot. Thanks for hosting!

  3. Can you help me find someone who can print our numerous 8 inch Model II discs which contain indexes of over 13 thousand slides of frogs, insects, etc from Central American rain forests and fly fishing scenes left to us by our nephew, Ken Miyata, PhD co author of “Tropical Nature” and author of many fly fishing stories until he died in 1983. If so, please Call me, Myles Glasgow, at 847 763 1597 in Skokie, Illinois if you can help me find someone who can print out these Model II 8 inch discs. mylesglasgow68@gmail.com

  4. i’m very happy to see that this site even exists.i recently purchased a model 4 on ebay a lot software just get a trsdos 6.2 disk to boot it up.
    well i found trsdos diskettes and some ldos ones.the seller warned about sticky keys.so i will buy 4 for parts.i have 500.00 invested so far,just
    to write BASIC programs. i have several different programs such as multi-plan,superscripit,visicalc,cobol,general ledger,etc. the trs-80 models III and 4 are my favorites…your a welcome friend mick

  5. Hello all. Plea for help here. april 28th 2016, is bring your kid to work day. I have a trs-80 Model III and four, left over in our facility that used to run some data collection for beepers. I want to hook these up and run a game or something for a demo of what computers were like from long ago. I have personally only Commodore PETs, so I don’t have anything TRS-80.

    Heck I’m having a hard time remembing TRS-80 Disk functions.. I think its Dload ? I’ll take any pointers I can get and a program or two would be greatly appreciated !!!!

    If you send me anything prior to 04/25/16 my address is as follows

    Mark Daily
    C/O United Radio Service
    5717 Enterprise Pkwy
    East Syracuse NY 13057

    THANK YOU ALOT in advance

  6. I have a model 100 in vinyl case. In great shape, with manuals, plug in, ac adaptor, and “portable disk drive.” At this point, have not attempted to boot….

    Any thots on starting it up after 35y? And I need to sell… and no idea how to price.
    Senior in Canada soon heading back to USA, looking to raise money for that venture.

  7. I have a TRS-80 model I, original monitor and cassette tape player; a disk drive, expansion board, some software, LDOS. Does anybody want it? I live in Houston, Texas. I’m hoping to get something for it, but probably if someone pays for shipping I’ll be happy.

  8. I have a TRS-80 Model II, monitor + Expansion Board + Floppy Drive: up and running. I have programs selfmade or bought, some of them working.
    I made a connector to replace monitor by a W10 computer and monitor. I use different camera solutions (e.g. normal VLC and OBS studio) so I can read better and record anything on the screen.
    Anybody interested in old SW exchange or ideas for new applications?
    What I need are button caps: “7” and “8” : or caps anything on it: they are broken and lost but the button itself is working.
    I also have a WATANABE WX4675 plotter controlled by TRS-80 but the X direction plastic driver chain broken. Any ideas to fix or replace?
    I would appreciate your help or advice.

  9. @LynnDavis Just saw your post. Are you still Interested possibly in selling? I’m very possibly interested in purchasing. Feel free to text or call me at +1 917 921 1039. My name is Michael. Hope to hear from you!

  10. Hi, Recently rescued a Radio Shack Model II computer w/ hard drive, disc unit and line printer VI. Amazed to reload mostly self made programs. The connecter ribbon chord (book calls 34 pin) for printer is missing. Any help? Thanks Richard Mote 2/7/18

  11. I got beautiful model 4p looks new ..i’m looking Forward to getting it. Watch what you buy and sell accordingly ..on ebay. You can bet it’s a machine you don’t what when they say “I no nothing”

  12. it seems the only problem with the model 4 has is the power supply and the keyboard. i guess that after buying 4 4’s on ebay i finally found one with a good keyboard how happy i was i’m up and running.if anyone has a good keyboard i would be interested i would trade 2 4 motherboards plus
    the other boards such as floppy,rs-232 etc.

  13. I am getting a 4p up and running, I hope. I can get the original TRSdos 6.2.1 to boot up, but am unable to get fresh LDOS or Newdos to boot. Seems the drive can not read these. Reviewing TRSDOS manual, any ideas what I need to do ? Thanks Dennis

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