Atari, Sega, Myst, and Oxo are all computer game makers. Atari is a company that was founded in 1972 and is known for creating classic arcade games such as Pong and Asteroids. Sega is a Japanese video game developer and publisher that was founded in 1960 and is best known for its Sonic the Hedgehog series. Myst is a puzzle-adventure game developed by Cyan Worlds and released in 1993. Oxo is a tic-tac-toe video game created by Alexander S. Douglas in 1952.