On 01/28/2014 05:38 PM, Chris Elmquist wrote:
Well, it was a totally closed-loop system with the gas
taken off the top
of the cryostat, fed back through a cryogenerator to make liquid again and
unless there was a problem, the CPU(s) stayed entirely immersed in liquid.
I remember the "wet nitrogen" thing was in response to a question I'd
asked him about "At what temperature do you keep the liquid nitrogen?",
so I suppose that was his way of saying "not too cold".
Who did the IC fab for the system? Fairchild?
Did Neil ever get to build his Super-X-by-God machine? I recall that
when I expressed some concern over his hard partition of 16 Kwords for
the operating system, he answered, something to the effect of "If you
can't fit an operating system into 16K, you don't belong in this business."
Old times...
--Chuck