The
Intellivision is a
home video game console released by
Mattel Electronics in 1979. Development of the console began in 1978, less than a year after the introduction of its main competitor, the
Atari 2600. The word
intellivision is a
portmanteau of "intelligent television". Over 3 million Intellivision units were sold and a total of 125 games were released for the console.