25 Jul
2005
25 Jul
'05
12:38 a.m.
--- Michael Nadeau <menadeau at comcast.net> wrote:
I don't know about earlier Compugraphic systems,
but
the one I used in the
mid-1970s had Z80 CPUs.
The one I'm thinking of would have been mid-to-late
60's. There was a spare parts kit for one auctioned
off on eBay that contained small "building-block"
logic boards, implemented with discrete transistors, I
believe.
Bill