28 Nov
2009
28 Nov
'09
9:10 p.m.
On 28 Nov 2009 at 23:31, allison wrote:
Generally it would be overall easier and more
efficient of a wider
group of parts were used even if they were still SSI (7400 Quad nand,
7404 hex inverter, 7432 quad OR and maybe 7474 dual Dflop)
After the proliferation of SSI types in the late 60s and early 70s,
the wheel turned again.
I recall that Neil Lincoln at CDC was working on a supercomputer
design using CMOS parts that he referred to as "Chiclets" (after the
chewing gum) in that the ICs for the system were about the same size
as a Chiclet and only 13 types were used; i.e. a complete replacement
set could be contained in a Chiclet box.
I seem to recall that a test vehicle was a version of the CDC 6400
that would fit on a tabletop, more or less.
This was about 1976 or so.
--Chuck