overheating issues, so the casings were removed. Later, the expansion cover was held down with screws instead of the easier-to-open plastic latches. The computers eventually shipped with maxed-out RAM: 16k and 48k, respectively, using 16kx1 DRAMs.

Both models have four joystick ports, permitting four simultaneous players, but only a few games (such as M.U.L.E.) use them all. Paddle controllers are wired in pairs, and Super Breakout supports eight players. The Atari