22 Nov
2006
22 Nov
'06
6:05 p.m.
On 22 Nov 2006 at 18:53, Richard wrote:
This wasn't a new idea either (the Janus board) --
the Apple ][ had
CP/M cards on them. I remember a scientist that had this tricked out
Apple ][ with data acquisition hardware that he used to automate some
of his lab work and a CP/M card he had plugged into it so he could run
Wordstar to write up his research!
Could the SSM 6502 S-100 card (the earliest alternate CPU card that I
can recall) co-reside with a 8080 CPU card? It seems to me that one
of the early "alternate" cards would simply pull the bus "hold" line
high to do this, But it's been a loooong time...
Cheers,
Chuck