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See below for specifications and information on this system.
Specifications and information
|Key Dates:||Announced June, 1979
Ships November, 1979
Peripheral Expansion Box (PEB) announced January, 1982
|CPU:||Texas Instruments TMS9900|
|Memory:||16K RAM, 26K ROM|
|Display:||32 characters by 24 lines text, 152x192 16 color graphics|
|Operating System:||ROM BASIC, assisted by Enhanced BASIC in a cartridge, and a disk management cartridge|
|Input/Output:||Built-in keyboard, cartridge port, expansion port for Peripheral Expansion Box (PEB), composite video monitor output|
|Cards Installed in PEB:||32K RAM, floppy disk controller, serial port, flex cable interface|
|Other Items in Collection:||Peripheral Expansion Box, pair of joysticks, various cartridges|
|Items Needed:||Floppy disk software|
Here's a shot of the Computer Closet's complete TI 99/4A system with Peripheral Expansion Box (PEB) with one 5 1/4" floppy disk drive, 32K RAM expansion, RS-232 card, Flex Cable Interface, and Disk Manager 2 cartridge.
Here's the TI 99/4A original color display box:
Texas Instruments Advertisements
Here are some classic advertisements from TI. Click a thumbnail to see a larger version of the picture.
|"Two Bytes Are Better Than One" in this silly ad for the TMS 9900 microprocessor circa May 1977.|
|By late 1982, the IBM PC was out, the Apple II was king of the home market, and even Bill Cosby couldn't save the 99/4A system, despite the recent announcement of the Peripheral Expansion Box pictured here.|
Texas Instruments 99/4A FAQ
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Last modified: April 17, 2003