Motor Company purchased Philco in December 1961. Scientific Data Systems (later known as Xerox Data Systems after its purchase by Xerox in 1969) also sold mainframe computers, but with around 1% market share, it was not a major factor in the marketplace. Xerox closed the division in 1975, with most rights sold to Honeywell. In 1976, Cray Research (a company supported by Seymour Cray's former employer Control Data Corporation), released the Cray-1 vector computer. Digital Equipment Corporation (DEC) was founded in 1957 to manufacture computer components, and made many mainframe computers, notably the PDP-6 and PDP-10 series. DEC later sold to Compaq, which was acquired by Hewlett-Packard. Hewlett-Packard (HP) was founded in 1939 manufacturing advanced electronic equipment. In the mid-1960s HP started producing minicomputers, which competed with mainframe computers. Amdahl Corporation, founded in 1970 by IBM Fellow, chief architect of the IBM System/360 range and entrepreneur, Gene Amdahl, was an information technology company specializing in IBM mainframe-compatible computer products, and became a wholly owned subsidiary of Fujitsu in 1997. International Computers Limited was a large British computer hardware, computer software and computer services company that operated from 1968 until 2002. The company was progressively acquired by Fujitsu, and in April 2002 it was rebranded as Fujitsu. References Defunct computer companies of the United States Burroughs Corporation Unisys NCR Corporation Control Data Corporation Honeywell Computing acronyms