An important milestone in the beginning of video games took place in 1971 when Nolan Bushnell began to market Computer Space, a version of Space War, although another recreational version of Space War such as Galaxy War may have preceded it in the early 70s in the campus of standford university.
The rise of video games came with the Pong arcade machine, which is considered the commercial version of Higginbotham's Tennis for Two game. The system was designed by Al Alcom for Nolan Bushnell at the newly founded Atari. The game was introduced in 1972 and was the cornerstone of the video game as an industry. During the following years, numerous technical advances were implemented in video games (highlighting microprocessors and memory chips). Games like Space Invaders (Taito) or Asteroids (Atari) appeared in arcades.
