Atari Introduces the Atari 2600, the First Successful Video Game Console Using Plug-in Cartridges

In 1977 Nolan Bushnell and Atari, Sunnyvale, California, introduced the Atari Video Computer System (VCS).

Later known as the Atari 2600, VCS was the first successful video game console to use plug-in cartridges instead of having one or more games built in. It was "typically bundled with two joystick constrollers, a conjoined pair of paddle controllers, and a cartridge game."