PDP 11 Boot screen?

From: Ed Kelleher <Pres_at_macro-inc.com>
Date: Mon Sep 13 17:19:44 2004

At 05:53 PM 9/13/2004, you wrote:
> >>>>> "Ed" == Ed Kelleher <Pres_at_macro-inc.com> writes:
> Ed> What PDP-11 OS screen is this? Late version of RSTS?
> Ed> http://ebayimages.octiva.net/PDP11-BOOTUP-SCREEN.JPG
>Definitely not RSTS. Not any OS I've ever seen, actually (not RT,
>RSX, IAS, BSD, DOS, RSTS, or Ultrix...).
>The message at the bottom mentions "DSM blocks". So I wonder if it's
>Is someone selling that? I know at least one person who might be
>interested (slightly, anyway)...

I saw the DSM, but I've never heard of anyone actually running a MUMPS system,
least of all on a QBus machine. Course that's not saying much since I forgot
completely about IAS, and Ultrix and never have seen these either, but
they're there.

With the XDT at the top of the screen I thought it might be M related,
but M was never friendly (?) like that. :-)
Maybe Mplus?

And I don't think DEC made a RK06/RK07 QBus interface (DM2, DM3, DM4 on the
Though Dilog, and others possibly, made QBus controllers that emulated
those drives.

Anyway it was supposedly for a QBus PDP11 memory board but seemed funny to me.

Ed K.
Received on Mon Sep 13 2004 - 17:19:44 BST

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