I inherited one of these 70s handheld games from a box of junk when I was five. It was a Harlem Globetrotters-branded basketball game. It was downright incomprehensible.

Atari's first three video arcade games tell a fascinating story of rapid evolution. At left is the world's first video arcade game ("Computer Space" - 1971), the game it inspired ("Pong" - 1972 ...