[TUHS] A/UX [was Linux is on-topic]
dave at horsfall.org
Sat Aug 15 12:08:22 AEST 2020
On Fri, 14 Aug 2020, Larry McVoy wrote:
> I'm sure everyone here knows this, but the Cray 1 (I think, the one that
> had what looked like a circular bench seat around the bottom) was
> designed like that because the clock was at the center and the clock
> signal went to all the boards and was right because all the clock lines
> to the boards were the same length.
Yep, timing was everything in those days (and I'm still amazed at the
people who believe that electricity moves at the speed of light).
Wasn't it Grace Hopper who used to demonstrate a nanosecond by holding up
a foot of wire?
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