Lee Boysel

Lee Boysel
Residence	San Francisco
Education	MSEE BSEE
Alma mater	University of Michigan
Occupation	Entrepreneur Business Executive Electrical Engineer Investor
Organization	Four-Phase Systems, Inc.
Known for	Founder of Four-Phase Systems, Inc.

Lee Boysel is an American engineer, and entrepreneur. While at Fairchild Semiconductor, he developed four-phase logic and built the first integrated circuit with over 100 logic gates and one of the earliest microprocessors, the Four Phase Systems AL1. He founded Four-Phase Systems to commercialize the technology, and sold the company to Motorola in 1981. Boysel is a graduate of the University of Michigan.

Texas Instruments claimed to have patented the microprocessor, and Lee Boysel in response assembled a system in which a single 8-bit AL1 was used as part of a courtroom demonstration computer system, together with ROM, RAM and an input-output device.

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