Personal Computer Museum, Canada's Videogame Museum

Tandy 1000 EX

Tandy 1000 EX

Speed7.16 MHz
Memory256 KB

What's this?

Tandy/Radio Shack

Release Date: 1/12/1986
Manufacturer: Tandy/Radio Shack
Original Retail Price:
Adjusted Inflation Price:
Donated By: Jason Souliere
The Tandy 1000 EX has 256KB of RAM and has a CGA graphics mode with a special "Tandy" mode that enabled 16 colors. The machine has a 7.16 MHz Intel 8088 processor and was considered quite a powerhouse "clone" at the time. The unit also has a built in 5.25" drive on the right-hand side.

Radio Shack AdA common misconception about the Tandy line is that it was not truly compatible with the IBM PC while in fact, there was very little software that did not run on it. Many game manufacturers even added support for the special modes the Tandy offered: a good gesture for those that owned the machine but probably a contributing factor to those thinking that the Tandy was somehow different (in a bad way).

Tandy CM-5 Monitor

Tandy CM-5 Monitor
Release Date: 1/1/1986
Donated By: Wilma Green
The CM-5 monitor is a newer version of the CM-4. Both are CGA monitors (4 colors) but if hooked up to the Tandy 1000 EX, this monitor can actually display 16 colors in the 320x200 graphics mode.

User Comments
Chuck Skelly, Underhill, VT, USA on Wednesday, April 11, 2018
I still have this first computer(Tandy 1000EX) in my basement, with the CM-11 color monitor, modem card, and printer. I picked up a Tandy 1000HX at a yard sale about 10 years ago. I fired it up for the kids and showed them the game frogger(frogs jumping onto logs)...They loved it!
Chrisnova777 on Monday, March 26, 2018
im looking to find one of these - fond memories from when i was 9/10/11 years old i stared at one of these all day all night back then - if anyone in ontario is selling one, please email me chrisnova777 (@ at) google mail (gmail) i have a 386DX/40Mhz machine that has an EGA wonder card in it that i'd like to get a color 9-pin EGA/VGA monitor to go with
Darlene Molina on Thursday, May 14, 2015
WOW! This was my first PC! I bought it brand new at 18 years old the minute I got an insurance settlement for getting rear ended in a car accident. The check was for $1,500 and I spent most of it on this dinosaur! It didn't come with a mouse so I had to pay an additional $50 for one! LOL At some point within a couple of years of purchasing it I spent an additional $300 or something crazy like that on an external 3.5" floppy drive. OMG! For that ungodly amount of money spent on that thing all I ever did was play lame monochrome games like Wheel of Fortune where a pixelated Vanna White jerkily moved in the general proximity of the letters looking like a broken perpetual wave machine. Sadly, I spent all of that money hoping to play Zork and a few other similar text based pretend "AI" games. I was crushed to discover I could not.
FRED HOWE on Tuesday, April 21, 2015
Adding to my previous comment, I recently dug the EX out of my garage, dusted it off and fired it up for the first time in about 10 years or more. Everything worked, apparently, but the hard drive does not communicate with the computer. it seems to spin up and go thru its power-up exercises, but the computer does not recognize it. Unfortunately, the only working DOS 5.0 boot disk sat in the floppy drive for all this time, and seems to have some issues. I can't remember how this set-up was done so the computer that Tandy swore in writing to me would not EVER work with a hard drive actually worked. The company (Tulin) that nade the hard drive and interface board is out of business, so I can't ask them, and I don't have the installation instructions any more. If anyone has any idea how this trick was accomplished, please help me out. I'd like to get the unit back in fighting shape and offer it for sale. I can send the contents of the autoexec.bat and config.sys files if it would help. There are several lines in them that I had to "rem" out (after figuring out how to use EDLIN again), to get the computer to boot properly from the floppy without a whole series of error messages.
Terry Ritchie on Saturday, November 22, 2014
The Tandy 1000EX was my favorite clone PC from the later 80's and early 90's. I learned how to program in Turbo Pascal, Ada, Assembler and Cobol on this beast. I used it to write a game called Link-Four (a Connect Four clone) that was published in the April 1992 edition of PCM Magazine, a magazine devoted to Tandy PC compatibles. I upgraded it to 640KB, added a second 3½" floppy drive, a CM5 monitor, a 60MB external SCSI hard drive, 300 baud plus card modem and RS-232 plus card port. Man, those were the days to be into computing!
Fred Howe on Monday, October 20, 2014
I have an original 100-EX, with dual floppy drives, memory expansion to 640K, and something I have never heard of annyine else having, a 60mb hard drive with interface card that I got specially made by a hard drive manufacturer. The hard drive lives in an external enclosure, similar to the external floppy drive. Anyway, I haven't used it in a while, but it sure was a lot of fun back in the day. If anyone is interested in buying it, they can contact me at
Naim AK on Thursday, September 25, 2014
My first comp...I was only 8 but wow did I ever learn a lot from it. Kings quest; changing floppy disks like crazy. It was the start of something special that till today has saved me time and countless tech bills. Great memories as it booted up and made all those mechanical sounds...
Nathan on Tuesday, July 8, 2014
My very first PC - spent hours with this thing. My early start and experience eventually became a career. However, I still curse DeskMate. Ugh.
Don Mctague on Thursday, May 1, 2014
My first Real Computer after the Vic-20.. So many memories.. So many games in 16 colors..
Scott Holloway on Sunday, May 26, 2013
This computer is responsible for my C grade in trig. I spent my homework time programming it to graph the functions I was learning. Anyway, it is still a good memory (pun OK, but not intended). I still have a few photos of program "runs", that were loads of fun. Worth every penny, though I think I got it on credit. I never did create a good driver for a printer. I suppose that came with my next machine.
Phulltillt Ca, U.S.A. on Tuesday, July 5, 2011
This was my first computer and because of it I have forgotten more about a computer than anyone needs to know today. The MS-DOS and DeskTop software bundle, for it's day, was amazingly user friendly. It also came with a quite extensive user/lesson book that make today's "out of box experience" very painful for today's first time computer user.
Anonymous on Wednesday, June 29, 2011
ik heb nog een komplete tandy 1000 ex met monitor te koop
Lonnie H. Duke on Saturday, July 24, 2010
I am seeking a CM-5 monitor or its equivalent for my Tandy 1000 Personal Computer SX.
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* Inflation data courtesy of Values are approximate using our own calculations.