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From: Warner Losh <>
To: Warren Toomey <>
Cc: The Eunuchs Hysterical Society <>
Subject: Re: [TUHS] Video of PDP-7 with Graphics-2?
Date: Thu, 15 Aug 2019 16:08:43 -0600
Message-ID: <> (raw)
In-Reply-To: <>

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On Fri, Aug 2, 2019 at 5:04 PM Warren Toomey <> wrote:

> On Fri, Aug 02, 2019 at 06:49:19PM -0400, Jim Carpenter wrote:
> > On 8/2/19 4:14 PM, Warren Toomey wrote:
> > > Hi all, I'm chasing the Youtube video of the PDP-7 at Bell Labs where
> > > people are using it to draw circuit schematics.
> >
> > A Bell Labs video? The only Bell Labs video I remember seeing that had
> > someone doing circuit schematics had it being done on a PDP-5. The -7 was
> > shown later doing music stuff. (That's the -7 that I thought maybe Unix
> > started life on.)
> Thanks Jim, Is it this one?
> They mention a Graphics-1 device, so maybe I'm getting this confused
> with the PDP-7 and the Graphics-2.

The early one for the circuit simulator is definitely on a PDP-5 and I
presume the Graphics-1 display. You can see the PDP 5 letters on one of the
cabinets. How do you know that the music was composed on the PDP-7 that
appears from 9:20-10:30? Cool paper tape feeding sequence, though, you
gotta admit :) (well, unless you waited for far too many of those to run
back in the day).


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Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-02 20:14 Warren Toomey
     [not found] ` <>
2019-08-02 23:03   ` Warren Toomey
2019-08-15 22:08     ` Warner Losh [this message]
2019-08-15 22:46       ` Warner Losh

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