7 Jul
2007
7 Jul
'07
11:58 a.m.
Microcomputing, Kilobaud???) where a fellow gave details about
constructing his own TTL 8080 CPU?
I remember a homebrew TTL CPU that used 7489's (16x4 SRAM. Not 16Kx4,
or 16Mx4, just 16x4!) in a dense array for main memory. Something
about baby-bottle liners filled with chilled water to keep them cool...
Would've been mid-70's or earlier. By the mid-70's 2102's were available
and nobody would've been using 7489's.
Don't remember which magazine!
Tim.