In 1982, Coleco released Expansion Module #1 for its ColecoVision video game system using off-the-shelf components, that enabled the ColecoVision to be compatible with the Atari 2600. Atari sued Coleco for patent infringement, however a court ruled that since Coleco used off-the-shelf components and not the same components found inside an Atari 2600, the Expansion Module #1 did not infringe on Atari's patents for the 2600. With this ruling, Coleco decided to make a stand-alone Atari 2600 clone and named it the Gemini.