On May 11, 2016, at 3:30 PM, Noel Chiappa <jnc at
mercury.lcs.mit.edu> wrote:
From: Dave Wade
I have recently a PDP-11 which apparently came
from a VAX console.
If that's really where it came from, it's a QBUS 11/03. (And IIRC only the
780 had a PDP-11 console, although I'm not a VAX expert.)
Some others had a PRO as their console. Don't remember which models specifically.
...
I have done lots of searching and there
doesn't seem to be a simple
list of what can run on it
Well, nothing that needs memory management - at least, as it sits. You could
swap out the CPU card for an 11/23 or 11/73, then you could run an OS that
needs memory management (Unix, or one of the DEC OS's that needs it - I know
nothing of the DEC OS's for the -11, someone else here will, though). And
your backplane is probably so-called Q18, limited to 256KB of memory, but
that's easy to upgrade.
The 11/03 should run RT-11 nicely. Limited RSX, possibly; I don't know those details.
RSTS V4 also runs on unmapped PDP-11 systems, but that OS only supports Unibus machines
and a very limited set of disk controllers (which doesn't include floppies).
paul