I have the TI-99/4A, the extended basic module, an assember module, and a wirewrapped 32K mem expansion I made myself. The TI-99/4a tech ref manual gave me the pinouts.
That was a machine that TI crippled. Using Gram or was it Grom to protect the chance to sell games and such. It could have been so much better built around the minicomputer chip inside.
Instead the rather open C64 adn V20 kicked their arse.
Wes
-- "Additionally as a security officer, I carry a gun to protect government officials but my life isn't worth protecting at home in their eyes." Dick Anthony Heller