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From: segaloco via TUHS <>
To: The Eunuchs Hysterical Society <>
Subject: [TUHS] Re: PDP-7 and Interdata 8/32 Bell System UNIX Installations?
Date: Tue, 19 Dec 2023 02:49:57 +0000	[thread overview]
Message-ID: <> (raw)
In-Reply-To: <>

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Thanks Ken! I hadn't, even considered the PDP-15. Looks like SimH supports it, that could make for an interesting project...

- Matt G.
On Monday, December 18th, 2023 at 6:12 PM, Ken Thompson <> wrote:

> the pdp-7 was run on the almost compatible
> pdp-9 and pdp-15 computers.
> i dont think that version of unix ever made
> it out of the research department.
> On Mon, Dec 18, 2023 at 5:54 PM segaloco via TUHS <> wrote:
>> Are there any documented or remembered instances PDP-7 or Interdata 8/32 UNIX being installed on any such machines for use in the Bell System aside from their original hosts? Along similar lines, was the mention of PDP-7 UNIX also supporting the PDP-9 based solely on consistencies in the architecture or did this early version of UNIX actually get bootstrapped on a real PDP-9 at some point?
>> My understanding of the pre-3B-and-VAX landscape of UNIX in the Bell System is predominantly PDP-11 systems, but there was also work in the late 70s regarding 8086 hosts as evidenced in some BSTJ and other publications, and there is the System/370 work (Holmdel?) which I don't know enough about to say whether it technically starts before or after UNIX touches the VAX.
>> Thanks for any info!
>> - Matt G.

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  parent reply	other threads:[~2023-12-19  2:50 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-12-19  1:44 [TUHS] " segaloco via TUHS
     [not found] ` <>
2023-12-19  2:49   ` segaloco via TUHS [this message]
2023-12-19  3:09 ` [TUHS] " Warner Losh
2023-12-19  7:35   ` Lars Brinkhoff
2023-12-21 17:48     ` Phil Budne

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