History of video games/Platforms/Texas Instruments TI-99/4A
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An 1981 Texas Instruments 99/4A computer with two joysticks attached.
History
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The Texas Instruments TI-99/4 was released in 1979 at a cost of $1,150.[1][2]
The improved Texas Instruments TI-99/4A was released in June 1981 at a cost of $525.[1][3]
Despite costing less than $100 by fall of 1982, and by being promoted by then popular comedian Bill Cosby, the TI-99/4A was severely challenged in the market by fierce competition in the low end segment, and by the video game crash of 1983.[2]
Production of the Texas Instruments TI-99/4A ended in 1984 with about 2.5 million systems sold.[4][5]
Technology
[edit | edit source]Compute
[edit | edit source]The Texas Instruments TI-99/4A is powered by the 16-bit TMS9900 processor clocked at three megahertz.[3]
A TMS 9918 or TMS 9929 handles video processing.[4]
The TI-99/4A has 16 kilobytes of RAM and 16 kilobytes of video RAM.[3][4]
Hardware
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The TI-99/4A has 26 kilobytes of ROM.[3]
Gallery
[edit | edit source]360 View
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Details
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The TI99/4A with cartridge on top.
Accessories
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Texas Instruments Program Recorder and cassette tape. -
Program Recorder side with labeled parts. -
Disk Controller Card. -
RS-232 Interface Card. -
32 kilobyte memory expansion card.
References
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- ↑ a b "Full Page Reload". IEEE Spectrum: Technology, Engineering, and Science News. Retrieved 28 November 2020.
- ↑ a b Pollack, Andrew (19 June 1983). "THE COMING CRISIS IN HOME COMPUTERS (Published 1983)". The New York Times. Retrieved 28 November 2020.
- ↑ a b c d "Texas Instruments TI-99/4A computer". oldcomputers.net. Retrieved 28 November 2020.
- ↑ a b c "OLD-COMPUTERS.COM : The Museum". www.old-computers.com. Retrieved 28 November 2020.
- ↑ "Texas Instruments Model 994A Personal Computer". National Museum of American History. Retrieved 28 November 2020.