Use the scroll bars
above to move the
TI-99/4A
motherboard.

(Click Back Button
to return)

1. TMS9900 CPU
2. TMS9918A VDP
3. TMS9901 Interface
4. Grom Chips
5. TMS9919/SN94624 Sound Chip
6. 8-TMS4116 RAM Chips
7. TIM9904 Clock Generator
8. 2-4k ROM chips

  9. 2-128 byte Scratch-pad RAM
10. Command Module Connector
11. Cassette Port
12. Video Port
13. Joystick Port
14. Keyboard Connector
15. Expansion Port