[vcf-midatlantic] MOS LSI chips time frame
hjohnson at retrotechnology.info
Thu Apr 11 15:24:38 EDT 2019
Ben Greenfield posted: "I’m doing some research on North American
Aviation/Autonetics artifacts and while researching simply Metal Oxide
Semiconductor or MOS."
He pointed to some photos of some NAA objects with labels "Autonetics
MOS/SOS" from Rockwell/Autonetics. Apparent dates 1968 or so.
My interest is in COSMOS products from RCA, particularly the 1802 COSMAC
microprocessor. A Web search of my site will be informative about that.
RCA produced an LSI chip-pair version later known as the 1801, sometime
in 1975; followed by the 1802 single-chip. But RCA produced SOS (Silicon
on Sapphire) COS (complimentary silicon) logic in the early 1970's and
I've not traced the history of RCA's CMOS work but it's likely of the
same era as the Autonetics/Rockwell work. Ben, I don't know your goals
or interests. But if I were researching this, I'd look back at the
electronic trade journals and the IEEE conference journals of the
period. Those would have names and dates and products and prototypes and
I'd like to be told, if RCA's CMOS work was preceded by work from
Rockwell slash Autonetics; or if there's some relationship.
Another subtext appears to be "the first microprocessor". I'm not overly
interested in arguing "firsts", or arguing ABOUT arguing "firsts". The
RCA COSMAC 1802 is interesting for many reasons.
Herbert R. Johnson, New Jersey in the USA
http://www.retrotechnology.com OR .net
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