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Texas Instruments TI-99/4A

Under construction.

The TI-99/4 is a home computer released in 1979. It retailed for $525 USD, which is equivalent to $1,490 after adjusting for inflation (in 2020)! Partially due to its exuberant price and lack of software support, it only sold around twenty-thousand units.

The TI-99/4A is an incremental upgrade to the original TI-99/4, at half the price of the original unit. Needless to say it was much more successful, selling around three million units.

Support for this system was introduced with Batocera v33. Does Batocera support emulating both models? Good question! FIXME

The original TI-99/4, early iteration blues. The beefed up TI-99/4A.

BIOS

Requires the MAME BIOS file ti99_4a in ZIP or 7Z format. The BIOS file can be placed in any one of the following locations:

  • roms/ti99/ti99_4a.zip
  • roms/ti99/ti99_4a.7z
  • bios/ti99_4a.zip
  • bios/ti99_4a.7z

ROMs

Cartridges need to be in *.rpk format and unzipped. The MAME software list files (*.bin) will not run properly.

  • systems/ti99.1635634212.txt.gz
  • Last modified: 5 years ago
  • by atari