PDP 11 Boot screen?

[Ed Kelleher]

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
>DSM-11.
>
>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 
screen).
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.