August 15, 2019 – Site Updates

I don’t usually post site updates, I just make them. I know I should be keeping better tabs on it 🙁

Anyway, here are a bunch of site updates that have occurred over the past however long:

1)  The ROMS page has a breakdown of what changed from v1.2 to v1.3 of the Model I ROM.
2)  I continue to scour old magazines for ads for software which was advertised, and adding them as “MISSING” to the archive.
3)   Every result from the search page should have a screenshot (or a note that none was available, no printer output, etc)
4)  Since people, apparently, LOVED to remove author credits from these programs (or putting their own names on them), I am using those screenshots to determine whether “Author Unknown” programs are actually known.
5)  Every time someone emails me a hardware question (which I send to Ian Mavric, thanks Ian), I update the repairs page with their question and his answer.
6)  I keep adding boxes to help fine tune archive searches. This is mainly because the search page is how I find things too, so if I am trying to find all software without a screenshot, for example, I can do that.
7)  As people point out pages which do not render correctly (because they are pre-HTML5), I fix them.
8)  Added a /SYS guide for TRSDOS v1.3 on the DOS Tips and Tricks page.
9)  Caught up on all the unsorted images and put solid effort into figuring out if they were good files or bad files, or needed 3rd party software.
10)  Fixed the bug that was keeping the ads from coming up on the archive searches, at least for me. It seemed anything being served from a directory called /ads/, or had a filename called ad-xxxxx, got blocked!

August 14, 2019 – New TRS-80 Trash Talk Podcast

The podcast TRS-80 Trash Talk # 32 is out now.

In this episode they start by previewing the upcoming Tandy Assembly 2019. They have a lot of big news to relate regarding the 3rd annual gathering of Tandy Radio Shack computing enthusiasts in Springfield, Ohio. They also discuss a new document archiving project of original Radio Shack Customer Service Bulletins. There’s the usual segments on new projects, new acquisitions, listener feedback and the book review. They then try to decide what do you do with a wall of Model I Video Displays. Finally, in their interview segment, Pete Cetinski talks to Tandy Radio Shack marketing executive Buzz Murphy. Buzz relates his experience at the company while riding the incredible wave that was created by the original TRS-80 microcomputer release in 1977.

You can download or listen at

August 13, 2019 – Model I Free for Local Pickup in Los Angeles, California

A site visitor has the following TRS-80 Model I hardware and other stuff to give away free for local pickup in Mar Vista/Los Angeles, California

•  TRS-80 Model I, lowercase kit, 16k
•  Original power supply
•  Monitor (not powering on)
•  Home-made Expansion Interface with 32k memory, printer port, disk controllers with power supply
•  1 half-height double-density 5.25″ diskette drive
•  Home-made power supply for diskette drive
•  NEWDOS 80 v.II diskette
•  NEWDOS 80 photocopied manual
•  Photocopied Z-80 MASM manual
•  Photocopied Rmon manual
•  “TRS-80 micro computer technical reference handbook” Radio Shack catalog number 26-2103, with the Model I circuit diagrams and explanations.
•  “TRS-80 ROM Routines Documented” by Jack Decker, from The Alternate Source.

I will relay messages sent to me in the order received – email to contest at trs-80 dot com. First come first served.

August 9, 2019 – Anyone have a CHROMATRS

Pascal Holdry is still working closely with the creator of the ChromaTRS to reverse engineer the ChromaTRS, but there are still some questions about the circuit board that remain unanswered.

If anyone has a ChromaTRS would you please reach out. I think even just a high res photo of both sides of the board might do the trick in identifying some missing components.


August 6, 2019 – Model I Desk Free for Local Pickup in Lake Orion, MI.

Update: Claimed

TRS-80 Model I desk – with the cutouts for keyboard / EI and bays for disks which he says is in excellent condition.

It is free for local pickup only from Lake Orion, MI (approx. 30 miles north of Detroit)

I will relay messages sent to me in the order received – email to contest at trs-80 dot com. First come first served.

August 2, 2019 – New Downloads Available

Brandt J Fine, author of Skyscraper and Gobbler, has graciously given permission to his files available for download, so if you search for Brandt J Fine, the files he ok’d should be live.

Similarly, Bill Prady has also graciously given permission to make his files available for download, so if you search for Bill Prady, the files he ok’d should be live.

July 30, 2017 – Unknown Commands

In my travels of reading disks and making sure the software runs, I have come across a few programs which use commands I cannot identify. I have check Snapp Extended BASIC, GBASIC, BASICG, LNWBASIC, LBasic, ZBASIC, NEWBASIC, etc. and I just can’t figure them out.

If anyone out there knows which Model 1/3/4 environment or software package may use the command LINPUT, please let me know. This command is part of Kim Watt’s Super Utility Help BBS, I think.


P.S. – David Sutherland researched and solved the mysteries of #CLS and HCLS.

July 9, 2019 – Floppy Days Podcast # 92 – Interview with Editor of CLOAD Magazine

Floppy Days podcast, devoted to all types of vintage computing, recently interviewed Mr. Dave Lagerquist, who was the editor of both the CLOAD cassette magazine, which was produced for the TRS-80 Model I and Model III, and Chromasette cassette magazine, which was produced for the Tandy Color Computer.

The Floppy Days podcast can be found at

July 8, 2019 – TRS-80 Model I – Free for Cost of Pack/Ship – San Diego, CA

Update: Claimed in 9 Hours

A site visitor located in San Diego, CA has a Model I, Level 2, 16k, with Cassette player and user manuals, a collection of 80-Micro and other magazines, and about 60 programs on cassette. He says the computer boots and works fine.

It is free for the cost of packing and shipping.

I will relay messages sent to me in the order received – email to contest at trs-80 dot com. First come first served.