If you liked our Atari 2600 PC project in issue 02 of MAKE you’ll really like this. Tursi documents how he built a mini-ITX PC into a TI-99/4A case. The TI-99/4A Home Computer was the number one home computer in America, with approximately 35% of the market share in 1982. Thanks Rich! Link.
Make a TI-99 in to a PC