Video game and the hit ping pong-style "Pong", a 1972 game by Atari. Each game used different means of display: NIMROD used a panel of lights to play the game of Nim, OXO used a graphical display to play tic-tac-toe "Tennis for Two" used an oscilloscope to display a side view of a tennis court, and "Spacewar!" used the DEC PDP-1's vector display to have two spaceships battle each other. In 1971, "Computer Space", created by Nolan Bushnell and Ted Dabney, was the first commercially sold, coin-operated video game. It used a black-and-white television for its display, and the computer system was
Ted Dabney their military products section. This work led to him becoming involved in early video imagery products within Ampex, including vidicon systems. By around 1969 Ampex had also hired Nolan Bushnell, who worked alongside Dabney and where they became friends. Bushnell, prior to joining Ampex, had come up with the idea of making a carnival-like pizza place with animatronics and games, and discussed this idea with Dabney. After seeing a computer system at the Stanford Artificial Intelligence Laboratory, the two came up with the concept of using a smaller computer or video systems, adding coin slots, and allowing people to pay