14 Jun
2005
14 Jun
'05
8:12 p.m.
On Jun 14, 2005, at 6:41 PM, William Donzelli wrote:
Speaking of PDP-8s, and now PDP-10s - a thought that
passed my mind:
Is there a good reason why DEC did not use the PDP-8 architecture
in the
PDP-10, for proper channel controllers? Cheap, versatile, sixbit,
and when
the KA10 came out, already designed. I would have thought it to be an
obvious "drop-in" solution.
Any thoughts?
William Donzelli
aw288 at osfn.org
They used PDP-8's for various comm. I/O (sync and async) and unit
record devices
(printers, paper tape punches & readers, and card readers).
These were called DC71, DC72, or DN92. Later, PDP-11/40's (and
11/34's ?) were
used. There is some documentation on the TOPS-10 v7.03 CUST tape.
Mike