 Pitts build the computer hardware and handled the programming, while Tuck, a mechanical engineer, designed the enclosing cabinet.The display adapter for the monitor was built by Ted Panofsky, the coin acceptors were sourced from jukebox manufacturer Rowe International, and the joysticks found at a military surplus store as remainders from B-52 bomber controls.The code for the game was based on a version of "Spacewar" running on a PDP-10 in the Stanford artificial intelligence lab, but modified with additional features.