Four-Phase Systems

Four-Phase Systems, Inc.
IndustrySemiconductor
Founded1969 (1969)
FounderLee Boysel
Defunct1982 (1982)
FateAcquired by Motorola
HeadquartersCupertino, California, U.S.
ProductsSemiconductor main memory, LSI MOS logic, central processing unit, microprocessor

Four-Phase Systems, Inc. was a computer company, founded by Lee Boysel and others, which built one of the earliest computers using semiconductor main memory and MOS LSI logic. The company was incorporated in February 1969 and had moderate commercial success. It was acquired by Motorola in 1982.

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