Arcade game Invaders", however, dealt a yet more powerful blow to the popularity of electro-mechanical games. In 1971 students at Stanford University set up the "Galaxy Game", a coin-operated version of the Spacewar video game. This ranks as the earliest known instance of a coin-operated video game. Later in the same year, Nolan Bushnell created the first mass-manufactured game, "Computer Space", for Nutting Associates. In 1972, Atari was formed by Nolan Bushnell and Ted Dabney. Atari essentially created the coin-operated video game industry with the game "Pong", the first successful electronic ping pong video game. "Pong" proved to be popular, but imitators
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