> >When I was working with some of the first digital designs in the
> >100-600 MHz range over 25 years ago...
>
> Oops. I don't know if this is an extra-zeroes issue or a "M"
> instead of a
> "K" or what, but just 10 years ago 1 MHz was good and 7 MHz
> was high end.
> 25 years ago, I very much doubt they were bandying about
> 600MHz anything,
> since we're only just reaching the 600MHz level now at the
> end of the 1990s!
>
> [Excessive quoted material snipped]
[Excessive signature snipped 8-]
Eh? My first job after finishing my DPhil was microcoding a AMD-2900 series
bit slice machine which had a 25ns (40MHz) clock. That was in 1983 and it
was far from rocket science then. Actually, I started (unpaid) work on it a
couple of years earlier, so we're actually talking about 18 years ago.
The good old 1970's Cray-1 had a 9ns (110MHz) clock if I remember correctly.
*Twenty* years ago, a 4MHz Z80A was a commodity chip. I still have a 1979
model 380Z from Research Machines with that very cpu. (Incidentally, RM is
one of the few companies of that era still making PCs.)
I can't remember when I bought my 25MHz 386, but it must be approaching 10
years ago.
Paul
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