* CPU: Atari custom 6502C, 1.79 MHz. This was technically software compatible with the Atari 2600's 6507 processor, though would have caused 2600 games to run far too fast, meaning that the eventual 2600 adaptor had to include its own 6507.
- GPU: Atari ANTIC (graphics coprocessor) and GTIA (video display)
- Sound: Atari POKEY.