Software on PDP11/32 in TNMOC Uk
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Fleen
Mar 28, 2026, 5:02:38 PM (6 days ago) Mar 28
to [PiDP-11]
Anybody have any idea on the operating system and software running on the pdp11/32 in the national museum of computing at bletchley in the UK? It has a menu leading to info, a machine learning tic tac toe, adventure and a few other equation speed test. Not obviously bsd2.11. Pic attached of the info pages.
Clem Cole
Mar 28, 2026, 5:16:16 PM (6 days ago) Mar 28
to Fleen, [PiDP-11]
IIRC IAS was the precursor to RSX-11D"The scrapbook system owned by the Museum is based on a Digital Equipment Corporation (DEC) PDP 11/70 - the most powerful Unibus PDP11 computer ever produced by DEC. It consists of the PDP 11/70 CPU and two Massbus controllers which originally controlled 2 x 67Mb DEC RM03 disk drives running the IAS operating system; and a Massbus tape subsystem (sadly no longer in existence)."
On Sat, Mar 28, 2026 at 5:02 PM Fleen <fergu...@gmail.com> wrote:
Anybody have any idea on the operating system and software running on the pdp11/32 in the national museum of computing at bletchley in the UK? It has a menu leading to info, a machine learning tic tac toe, adventure and a few other equation speed test. Not obviously bsd2.11. Pic attached of the info pages.
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Anton Lavrentiev
Mar 28, 2026, 8:26:48 PM (6 days ago) Mar 28
to Clem Cole, Fleen, [PiDP-11]
> IAS was the precursor to RSX-11D
I think it was the other way around.
To view this discussion visit https://groups.google.com/d/msgid/pidp-11/CAC20D2PnH3WV13wJ1rUjd5Pn30kTPqgy9pCY4HKEmCTty8WsMw%40mail.gmail.com.
Johnny Billquist
Mar 28, 2026, 9:21:33 PM (6 days ago) Mar 28
to pid...@googlegroups.com
On 2026-03-29 01:26, Anton Lavrentiev wrote:
> > IAS was the precursor to RSX-11D
>
> I think it was the other way around.
Yup.
> > IAS was the precursor to RSX-11D
>
> I think it was the other way around.
Johnny
> <mailto:cl...@ccc.com>> wrote:
>
> https://www.tnmoc.org/events/2021/7/13/npl-scrapbook-not-scrap-
> anymore <https://www.tnmoc.org/events/2021/7/13/npl-scrapbook-not-
> scrap-anymore>
>
> "The scrapbook system owned by the Museum is based on a Digital
> Equipment Corporation (DEC) PDP 11/70 - the most powerful Unibus
> PDP11 computer ever produced by DEC. It consists of the PDP
> 11/70 CPU and two Massbus controllers which originally
> controlled 2 x 67Mb DEC RM03 disk drives running the IAS
> operating system; and a Massbus tape subsystem (sadly no longer
> in existence)."
>
> IIRC IAS was the precursor to RSX-11D
>
> On Sat, Mar 28, 2026 at 5:02 PM Fleen <fergu...@gmail.com
> <mailto:fergu...@gmail.com>> wrote:
>
> Anybody have any idea on the operating system and software
> running on the pdp11/32 in the national museum of computing at
> bletchley in the UK? It has a menu leading to info, a machine
> learning tic tac toe, adventure and a few other equation speed
> test. Not obviously bsd2.11. Pic attached of the info
> pages.Screenshot 2026-03-27 at 18.37.17.png
> "The scrapbook system owned by the Museum is based on a Digital
> Equipment Corporation (DEC) PDP 11/70 - the most powerful Unibus
> PDP11 computer ever produced by DEC. It consists of the PDP
> 11/70 CPU and two Massbus controllers which originally
> controlled 2 x 67Mb DEC RM03 disk drives running the IAS
> operating system; and a Massbus tape subsystem (sadly no longer
> in existence)."
>
> IIRC IAS was the precursor to RSX-11D
>
> On Sat, Mar 28, 2026 at 5:02 PM Fleen <fergu...@gmail.com
> <mailto:fergu...@gmail.com>> wrote:
>
> Anybody have any idea on the operating system and software
> running on the pdp11/32 in the national museum of computing at
> bletchley in the UK? It has a menu leading to info, a machine
> learning tic tac toe, adventure and a few other equation speed
> test. Not obviously bsd2.11. Pic attached of the info
>
>
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Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: b...@softjar.se || Reading murder books
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Clem Cole
Mar 28, 2026, 9:25:48 PM (6 days ago) Mar 28
to Anton Lavrentiev, Fleen, [PiDP-11]
You could be right. They were related. I’d gave to ask one of the RSX folks, but I’ve lost touch with those I used work with. I’m fine on the Unix world as I was a part, but I avoided RSX as much as I could.
Sent from a handheld expect more typos than usual
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