Mailinglist Archive: opensuse (4020 mails)

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Re: [SLE] new v9.2 is out-terminal question
  • From: Russ <russbucket@xxxxxxxxxxxxxx>
  • Date: Wed, 27 Oct 2004 18:48:59 -0700
  • Message-id: <200410271848.59854.russbucket@xxxxxxxxxxxxxx>
On Wednesday 27 October 2004 12:36 pm, Allen wrote:
> On Wed, Oct 27, 2004 at 10:08:09AM -0700, Robert A. Rawlinson wrote:
> > Richard wrote:
> > >On Monday 25 October 2004 05:32 pm, Bruce Marshall wrote:
> > >>My first computer experience was with a IBM 650. The memory was on a
> > >>rotating belt-driven drum. Sometimes with a power spike, the belt
> > >>would snap..... :-)
> > >
> > >Didja ever see what happens to a 6 foot drum with fixed heads when there
> > >is a sudden phase reversal? The drum, rotating at 3600 rpm, stops in a
> > >fraction of a rotation as it slams into the heads.
> > >
> > >I doubt if many here have ever heard of, much less worked on a serial
> > > drum machine using ac logic. That was the first Process Control
> > > Computer, a RW/BR-300 invented around 1957 and still controlling the
> > > original process at the Texaco refinery when I left the company in
> > > 1973. You had to speak machine language on that one, assembly came
> > > later.
> > >ra
> >
> > The first computer I worked on had them and lots of vacuum tubes. It had
> > the power of one of the first radio shack computers. It took up one
> > story of a five story building and had an interlock with the air
> > conditioning system as they claimed that if the air cond failed the
> > computer would reach the combustion temp of paper in five minutes. I
> > don't know if they were exaggerating or not.
> > Bob
>
> Heh, was it powered by AMD? ;)
>
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I guess I may beable to go one better, I worked on a CDC computer controlling
the first Nuclear Power plant in the US. TO change program you loaded a paper
tape. Used a head per track disc (Drum) and do you know what happens when an
airline drops one? Also since you were in process control do you know hat a
scane value was? (did spell name right) {two hundred fifty six analog inputs,
one digital output.
--
Russ

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