PDP-11/44 boot prompt

From: Mitch Wright <mew_jac_at_swbell.net>
Date: Sun Nov 1 18:02:57 1998

Tony Duell wrote:
>
> > If you saw this CPU card in a junk pile and didn't know it was a UNIBUS
> > card you'd mistake it for some kind of 8085 controller board with 74181s
> > on it. Sort of sick, a PDP-11/44 slaved to a 8085.
>
> Hmm... Well, DEC cards have a pretty distinctive form factor, so you'd
> probably guess is was something out of a DEC machine.
>
> But acutally, the 8085 is on a card called the MFM (Multi Function

Your absolutely right, in this system:
        Slot4 M7094 Data Path
        Slot5 M7095 Control
        Slot6 M7096 MFM & 8085
        Slot7 M7097 Cache & 74s181
        Slot8 M7098 UBI
Mitch

> Module). That contains very little of the CPU. There are 2 other cards
> with the main CPU on it (that's where you'd find the 74S181s) + cache,
> more bus interfacing, etc. The CPU is 5 boards I think + 1 for the
> floating point + 2 for the CIS (which I don't have in my 11/44).
>
> -tony
Received on Sun Nov 01 1998 - 18:02:57 GMT