Intellivision
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The Intellivision is a video game console released by Mattel 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.
Add-on
- In 1982, Mattel introduced a new peripheral for the Intellivision: The Intellivoice, a voice synthesis device which produces speech when used with certain games. The Intellivoice was original in two respects: not only was this capability unique to the Intellivision system at the time (although a similar device was available for the Odyssey2), but the speech-supporting games written for Intellivoice actually made the speech an integral part of the gameplay. Unfortunately, the amount of speech that could be compressed into a 4K or 8K ROM cartridge was limited, and the system did not sell as well as Mattel had hoped.