Intellivision

The Intellivision is a home video game console released by Mattel Electronics in 1979. The name is a portmanteau of "intelligent television". Development began in 1977, the same year as the launch of its main competitor, the Atari 2600. In 1984, Mattel sold its video game assets to a former Mattel Electronics executive and investors, eventually becoming INTV Corporation. Game development ran from 1978 to 1990 when the Intellivision was discontinued. From 1980 to 1983, more than 3.75 million consoles were sold. As per Intellivision Entertainment (the current holders of the Intellivision brand) the final tally through 1990 is somewhere between 4.5 and 5 million consoles sold. In 2009, IGN ranked the Intellivision No. 14 of the greatest video game consoles of all time. It remained Mattel's only video game console until the HyperScan in 2006. The Intellivision was developed at Mattel in Hawthorne, California, along with the Mattel Electronics line of handheld electronic games. Mattel's Design and Development group began investigating a home video game system in 1977. It was to have rich graphics and long lasting gameplay to distinguish itself from its competitors. Mattel identified a new but expensive chipset from National Semiconductor and negotiated better pricing for a simpler design. Its consultant, APh Technological Consulting, suggested a General Instrument chipset, listed as the Gimini programmable set in the GI 1977 catalog. The GI chipset lacked reprogrammable graphics and Mattel worked with GI to implement changes. GI published an updated chipset in its 1978 catalog. After having chosen National in August 1977, Mattel waited for two months before ultimately choosing the proposed GI chipset in late 1977. A team at Mattel, headed by David Chandler, began engineering the hardware, including the hand controllers. In 1978, David Rolfe of APh developed the onboard executive control software named Exec, and with a group of Caltech summer student employees programmed the first games.