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T > TANDY RADIO SHACK  > TRS-80 Model 100 / 102


This mini forum is intended to provide a simple means of discussion about the Tandy Radio Shack  TRS-80 Model 100 / 102 computer. If you want to share your own experience or memories, or add relevant information about this system: post a message!

  Click Here to add a message in the forum


Friday 17th December 2010
Jim Newton (USA)

In 1983, I was a journalist working for a news service in Atlanta when Radio Shack came out with the model 100. Since I was the bureau chief, I bought one for our staff (mostly me) to use.

It only had an 8-line monochrome screen and 16k memory, but the model 100 served me well until Tandy came out with the model 200 in about 1985. It had 32k memory and a 16-line screen (40 characters per line) with the screen on a hinged top that folded down over the keyboard like today''s laptops. The model 100 was more like today''s notebooks.

I would take the Model 100 (and later the 200) to meetings, write my story from the meeting site, find a phone, hook up my portable modem with an RS232 cable, and transmit my copy back to the modem on the office typesetting equipment. It sure beat calling the story in and dictating it by phone to a colleague. Plus, I could cover the news at night and have the story waiting in the office when I went to work the next mornning, and it was in the memory of the typesetting unit. What a technological revolution the Model 100 was for workikng journalists. I loved it.

I liked the model 200 so much that I bought one personally, and still have it in my closet. I even bought a Radio Shack printer and a floppy disc drive for storage of stories I had written, and still have the disc drive for it.

Both the model 100 and 200 were workhorse equipment for journalists in the 1980s. Glad to read about other journalists who loved this little machine. It changed my life.

$ Jim Newton, retired journalist, Clinton, Ms

Tuesday 21st April 2020
Mark Wigginton (USA)

As a reporter in Los Angeles I used the model 100 to cover both the Emmy''s and Oscars, using the phone cups to transmit the story back to the newspaper. It was magic.

Sunday 23rd July 2017
Phil Cantor (United States)

I used one of these during my junior year of college in 1984. I was doing an internship at NIH in Washington DC and used this to write papers and communicate with my friends back in Iowa... racking up big phone bills using the modem to tie into the mainframe. My roommate created a huge poster of an orca using ASCII which he then printed using a dot matrix printer in his lab. It was a lot of fun... my first laptop.

Sunday 5th March 2017

VirtualT Is The Only Emulator

Sunday 16th January 2011
Chulang Searales (Barbados West Indies)

I have a T100 now. the 3.6V memory battery has leak. I have to replace that as well as the contrast knob. It willl be fun getting it back up and working

Thursday 24th June 2010
Marty (Woodstock, IL USA)

I was cleaing out the closet and found my Model 100. I turned it on and it still works and ther date time was within an hour. I had forgot I still had it. I have had it since 1980. If the batteries weren''t dead in 10 years Maybe I should use this in stead of buying an iPad.

After seeing that otheres are still using their Model 100s I will learn how to live with only 24k of ram. I used to!
I think it is time to change tos internal NiCad batteries first. 30 years is a little long for them.

Saturday 15th September 2007
webb (sydney australia)

I have 2 tandy 102's and did not know they were even good for keeping the door open. But there are people out there still using them so i have a pair of 102's and they are in brandnew condition still in lether cases and both come in a wooden case aswell.

Monday 23rd July 2007
Josh Carlson (Alabama)

I have had a model 100 for several years now. I LOVE the thing. It's impossible to break! It always works, there is not enough of a system there to crash and it sips battery power. Makes a great serial console for some of my old machines.

Great system that is still *very* usable!

Sunday 22nd July 2007
js (nowhere)

I once had a Kyocera Kyotronic 85, which was Kyocera's internal version. Didn't come with as much software as the 100/102 though.

Tuesday 10th April 2007
thomas (alabama)

for the last 4 weeks i have been takeing notes with the model 100 it works great only problem is the sceen flikers every now and then but my teacher don't care and it has hellped my typeing i wish tandy still made computers,i am debateing on buying the TSR-80 model 3 yea for tandy

Tuesday 15th August 2006
Chulang Searles (Barbados(West Indies))

I had broughone in th eUK after using one here. It was a fantastic laptop. I hoope to find one soon. MInes had stop working

Friday 16th December 2005
Mnem (Canada)

The printer port isn't percisley "Tandy proprietary" as stated on the connector diagram. You can actually plug the connector from a motherboard header plug for an AT style parrallel port backplate connector right into that port and then just plug a standard printer port into the other end. Only thing you have to figure out is how to set your printer to do a line feed on LF only instead of LF&CR as the Model 100 doesn't print out CR characters. This can usually be done by either holding down a combination of buttons on your printer whilst you turn it on to get into the settings mode, or via dip switches somewhere on the printer on most older printers. Check your printer manual to find the exact method.

Saturday 17th September 2005
Aaron (Indiana)

I came across one of these a year or so ago. I would have loved to have kept it, but had no use for it and needed the money at the time. One interesting thing is the carrying case that i had. I didnt see it on the accessories page. It was a velvet (or some other very soft, fuzzy cloth) lined pleather bag with RadioShack Tandy Portable Computer stamped into the cover. Sadly, i have no high-resolution pictures of it, but i do have a picture you can view at

take a look if youre interested.

Monday 21st March 2005
Andy (Manchester)
Alchemist Research

I have a Tandy 102 and an EPROM programmer on the PC. I've noticed a spare standard ROM socket inside the 102. Does anyone know of any links to sites containing ROM images?

Friday 5th November 2004
Arthur Kaufman (UK)

I have two Tandy 200's and two 100's and use them as working machines, almost on a daily basis. I have also written an article on the Tandy 200. I did not know about your site until recently . These machines, apart from their obvious usefulness are great for touch typists, and unlike modern laptops, with the keys too close and the mouse in the way. Would like to know if there is anyone near Sheffield UK who still uses these machines.
Looking forward to any replies...

Monday 12th April 2004
Tom Morgan (Sacramento)

I worked for a company named System10 in San Jose and we used these computers for a budget priced UPS Manifest system in conjunction with our electronic postage scale and a printer. At the time we were one of three companies authorized to sell a UPS manifest system and these were popular due to the compact size. This was back in the early 80's.

Tuesday 10th February 2004
Net Ranger (Orlando, FL)

For info on the model 100 and 102, check you may also want to subscribe to the mailling list (check the site). A lot of people still use this machines and they can provide you with information.

Thursday 5th February 2004
Penni (Madison, WI)

Looking for some help here, I have a Tandy 102 Digitgate manufactured for Radio Shack in 1988. Anyone out there have a clue a to what I am refering to?

Thursday 6th November 2003
M. Ayers (North Carolina)

I wish I had known about this sight earlier. I just trashed 4 model 100's and 2 model 102's. We used to use them to collect behavior data, before lap tops.

Tuesday 28th January 2003
grayfox (foxcom)

are there emulators for this computer yet
if so let me know

Wednesday 30th October 2002
Robert King (Georgia)

I have a Tandy 102 with an interesting accessory that I cannot figure out. It is a Datapac model 102/200 Ram Extension. I cannot figure how to use it. It also has a ROM chip in the chip slot titled EXECWS ver 08/04/87. It was used by a hospital at one time.

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