john eerenberg wrote:
"Prior to that they were all bipolar ECL and watercooled."
PDP-10's were ECL based machines and if I am not mistaken the failed VAX
9000 series (circa 1991) was too and that was the end of ECL (that I am
aware of).
"First mainstream successful CMOS microprocessor I'm aware of was the
RCA "COSMAC" 1801(?), circa 1975. "
Does that bring back memories! I built a COSMAC 1802 machine (I think
1802 is the correct model number) for a logic class straight out of a
Popular Science article. I had to ask my dad for $40.00 to buy the chip
IIRC.
There are some nice sites, which have informations about this chip:
http://www.cosmacelf.com/
http://www.sasktelwebsite.net/jbayko/cpu2.html#Sec2Part1
Regards,
Matthias Waldhauer
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