>> Actually, even though it came out of a Unibus machine, it's a Qbus CPU
>> card.
>
>I assume that you mean it's a Unibus version of the 11/73. I can't
>imagine that it would be usable in a Q bus backplane. The pinouts are
>quite different!
Nope, the KDJ11-B which plugs into an 11/84 can also be plugged into a
Qbus box and work... The fact is that the 11/84 actually has two buses,
the qbus, on which the processor and memory reside (as well as the
q-u bus converter), and the unibus, in which the rest of the options
reside.
(Yes, Tim is right about the official boards which go in specific
boxes and are marketed and sold as specific systems)
Megan Gentry
Former RT-11 Developer
+--------------------------------+-------------------------------------+
| Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com |
| Unix Support Engineering Group | (home): mbg!world.std.com |
| Compaq Computer Corporation | addresses need '_at_' in place of '!' |
| 110 Spitbrook Rd. ZK03-2/T43 | URL:
http://world.std.com/~mbg/ |
| Nashua, NH 03062 | "pdp-11 programmer - some assembler |
| (603) 884 1055 | required." - mbg |
+--------------------------------+-------------------------------------+
Received on Sat Oct 17 1998 - 21:31:40 BST