Intellivision

The Intellivision (a portmanteau of "intelligent television") is a home video game console released by Mattel Electronics in 1979. It distinguished itself from competitors with more realistic sports and strategic games. By 1981, Mattel Electronics had close to 20% of the domestic video game market, selling more than 3.75 million consoles and 20 million cartridges through 1983. At its peak, Mattel Electronics had about 1,800 employees in several countries, including 110 videogame developers. In 1984, Mattel sold its video game assets to a former Mattel Electronics executive and investors, eventually becoming INTV Corporation.