Four Phase System ICs

classic non-acorn hardware, software & languages
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martinw
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Four Phase System ICs

Post by martinw » Wed Feb 19, 2020 6:27 pm

A nice little addition to my collection.
Four Phase Systems ICs.jpg
Any information appreciated.

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BigEd
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Re: Four Phase System ICs

Post by BigEd » Sun Feb 23, 2020 6:35 pm

Historically very important, I think!
http://www.cpushack.com/2014/08/15/four ... ee-boysel/
http://mit-a.com/fourphase.shtml
https://en.wikipedia.org/wiki/Four-Phase_Systems
Four-Phase Systems 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 1981.

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martinw
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Re: Four Phase System ICs

Post by martinw » Mon Feb 24, 2020 3:14 pm

Thanks for that the MIT page looks very interesting, not seen that before =D>

Martin

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