22 Mar
2005
22 Mar
'05
2:32 p.m.
Curt wrote:
You should also consider if you want a Unibus system
(even numbered) or
a Qbus system (odd numbered) or a hybrid like an 11/83.. though thats an
80's system, hmmmmm....
The 11/83 is a Qbus system. There aren't any "hybrid" systems.
You were perhaps thinking of the 11/84 and 11/94 Unibus systems, which use
the same CPU modules as the 11/83 and 11/93 Qbus systems. But when those
modules are used in the 11/84 and 11/94 backplane, there is *NOT* a Qbus
present. There is a somewhat-Qbus-like bus, but it is not compatible with
Qbus either electrically or in terms of bus protocol.
Anyhow, none of those meet the "70's design" criteria Ian specified.
Eric