Ian Moote wrote to GEORGE WHITE on 12-05-1999
IM> Well... a little rhetorical that question was. [:) IIRC the first
IM> digital IC was put into production around 1974, for the U.S. space
IM> program I think. We don't re-invent digital circuits any more than
IM> we re-invent code to perform binary multiplication. When someone
IM> coughed up a decent digital RTC, that circuit was licenced and
IM> re-used in a myriad applications. Remember that things were
IM> changing very quickly in those days. IC's meant ease of
IM> implementation, and the closer your product could emulate another
IM> the more it would be used. The RTC in question tracked a
IM> single-byte year, but nobody believed that we'd still be using it
IM> in 1999.
I used a prototype LORAN set in 1963 where Collins Radio used early TI
techniques to reduce the beast to the size of a pack of cigarettes -
but could find room for all the knobs. The 7400 series IC's were
commercially available by at least 1969 - I paid an arm and a leg for
some of them to use in a research project. You history is a bit skewed
- and the industry is slower in some areas than even you believed.
Will Honea
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