Hi,
Yes it was indeed a DIBOL based machine. I think it was used as a business
administration system of some sort, possibly for the printing industry.
When I viewed the machine, it was deeply buried under boxes of paperwork and
so I've not had a chance to fully inspect the CPU cabinet. The reason for
having to crane it out is that the machine is on the first floor of the
office building it is stored in and I decided the few hundred pounds it
would cost to hire a crane were considerably less than the back surgery I
would require if I attempted to get it down the constricted stair cases I
was faced with. Plus I could get it out in one piece rather than having to
dismantle. Luckily the build has a nice large (reinforced) flat roof, so
should be a case of wheeling it out and craning it down.
I'm still suspecting the machine to be an 11/34 as I couldn't see any sign
of a full switched console so suspect there is a keypad hidden away
somewhere. Regardless it will be a nice machine to add to my growing haul of
PDPs and VAXes (upto 40 now)
Out of interest, how many UK PDP-11 owners are there on this list? Might be
worth assembling a little SIG to allow us to swap parts etc
Thanks,
Toby
----- Original Message -----
From: "Rod Smallwood" <RodSmallwood at mail.ediconsulting.co.uk>
To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org>
Sent: Monday, September 17, 2007 5:38 PM
Subject: RE: Help identifying a PDP-11
A couple of other things have come to mind.
DEC DataSystem usually indicated that it supported *DIBOL running under
OS/8, RT11 or VMS
They were intended to be a business package system ready run and often
included training, installation
and maintenance.
There's a possible confusion here 'DEC System' refered to a DEC10 or
DEC20 and DEC DataSystem to one of these package jobs.
*Program Structure like COBOL. Syntax like Fortran/BASIC. BCD Arithmetic
Rod Smallwood
-----Original Message-----
From: cctech-bounces at
classiccmp.org
[mailto:cctech-bounces at
classiccmp.org] On Behalf Of Tim Shoppa
Sent: 17 September 2007 13:50
To: cctalk at
classiccmp.org
Subject: Re: Help identifying a PDP-11
Can anyone help me identify my latest PDP-11
rescue. Not been able to
get a good look at it yet as it is in a room packed (and I mean
packed) with junk. Machine consists of a DEC Datasystems cab (about
35-40U with a blue bottom panel, pretty similar to light blue cabs
here:
I'm not familiar with the DEC Datasystems
versions of PDP-11s. Does
anyone have any background information on them?
Also, I'm pretty sure I've not lucked out
and found an 11/70 as no
toggle switch console, any ideas on what other models were fitted to
these cabs. I'm guessing 11/34.
That is an 11/70, but with the "remote diagnostics console". You will
find a M8255 KY11-RE in there to connect up a modem to give remote
console access. Probably hooked up to a modem that was owned by DEC
maintenance org and leased as part of the maintenance agreement. I'm
sure that sometimes they asked for the modem and console back if the
maintenance contract was terminated but as a practical matter I find
that they hardly ever reclaimed the equipment.
Tim.
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