General Instrument (GI) was an American electronics manufacturer based in Horsham, Pennsylvania, specializing in semiconductors and cable television equipment.By the late 1960s, the company was mostly depending on sales into the television industry, which was further bolstered by the 1967 purchase of Jerrold Electronics.At this time, GI became well known for their IC's including the CP1600 used in the Mattel Intellivision game console, the AY-3-8910 series of sound chips that were used in a huge variety of designs, and the PIC microcontrollers which remain in production as of 2024[update].They sold off their IC division to form Microchip Technology in 1987, leaving them almost entirely dependent on the television market.In April 1957 they added Radio Receptor Company, in 1959 Harris Transducer, and among their more notable purchases, closed General Transistor in 1960.[2] Shapiro retired in 1975 and was replaced by Frank Hickey, who focused the company on its two most profitable markets, cable television and gaming.But any losses in this market were overshadowed by the massive expansion of cable television, which quickly took over from the betting systems as the company's primary profit center.In October 1982 they won a $100 million contract to supply over 300 cable TV stations with head end systems.The "new" GI Corporation was acquired by Motorola in January 2000 for $17 billion and became the new Broadband Communication Sector (BCS)[4] along with an acquisition of Zenith Network Systems a few months later.On December 19, 2012, ARRIS announced that it would acquire Motorola Mobility's Home unit (the former GI company) from Google for $2.35 billion in cash and stock.[7] On November 8, 2018, CommScope announced that it would acquire ARRIS in a cash deal valued at $7.4 billion including the repayment of debt.[11] J. L. Seely, manager of MOS Operations at General Instrument Microelectronics Division, also wrote about four-phase logic in late 1967.