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Groups > comp.os.linux.misc > #95344

Re: My Computer History (Re: Is This An Old Folks Home?)

Newsgroups comp.os.linux.misc
From Charlie Gibbs <cgibbs@kltpzyxm.invalid>
Subject Re: My Computer History (Re: Is This An Old Folks Home?)
References (5 earlier) <11cm2tq$33858$1@dont-email.me> <wEudnY94QsYfIXP3nZ2dnZfqnPGdnZ2d@giganews.com> <11cnc4c$3g7sr$1@dont-email.me> <WoRHS.510$v13.412@fx38.iad> <slrn11evu95.82s.spamtrap42@one.localnet>
Message-ID <_lTHS.541$7_2.422@fx42.iad> (permalink)
Date 2026-11-08 05:00 +0000

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On 2026-11-08, Robert Riches <spamtrap42@jacob21819.net> wrote:

> On 2026-11-08, Charlie Gibbs <cgibbs@kltpzyxm.invalid> wrote:
>
>> On 2026-11-07, Lars Poulsen <lars@beagle-ears.com> wrote:
>>
>>> The RC2000 paper tape reader actually could read up to 2000 characters 
>>> per second. It contained a 512 byte buffer memory. The more open space 
>>> in the buffer, the faster the paper tape would advance. It was very 
>>> impressive to see it  running at full speed!
>>
>> My first job was programming a Univac 9300 which had an RC2000
>> interfaced to it.  Most of our jobs didn't need data fast enough
>> to make it really wind up, so I added a summary option to one
>> program to make it show its stuff.
>>
>> Later we came up with an application that needed to read lots of
>> tape at full speed.  A big roll of tape shooting through the machine
>> at 200 inches per second built enough of a static charge to create
>> a fat spark - which crashed the machine.  I rigged up a chain of
>> paper clips (grounded, of course) that hung where the tape would
>> hit it on its way out of the reader.  Even then, we have to get
>> a kettle boiling in the machine room to get the humidity up enough
>> to help the charge bleed off.
>
> A piece of (grounded) anti-ESD foam from an integrated circuit
> order might have drained off the charge with perhaps less risk of
> even small sparks.  One of the advantages of the carbon-based
> black back-coating Ampex put on their higher-end audio recording
> tapes back in the day was prevention of static build-up.

We didn't think of that.  Hmmm...

Speaking of back-coated tapes, we had a few back-coated 9-track
tapes in our shop.  A customer who was leaving us asked to have
his data written onto a tape, and we happened to grab one of the
back-coated tapes.  A few days later we got an angry call from
said [ex-]customer accusing us of sabotaging them.  They didn't
know about back-coated tapes, so they automatically assumed that
the back of the tape was always shiny Mylar.  When they saw the
dull backing of the back-coated tape, they assumed we had wound it
onto a spool back-to-front to screw them up.  Without even trying
to read the tape first, they-respooled it so it really was on the
reel back-to-front.  Naturally, it didn't read too well.  Once we
got them to re-spool it properly (i.e. they way we gave it to them)
all went well.

> Within a few years either side of 1980, a professor in an EE
> class told a story from early in his career.  He was hired by GE
> to work on _BIG_ (as in 8 feet to 16 feet diameter) motors and
> generators.  He said GE would hire EEs and teach them mechanical
> stuff, because that worked better than hiring MEs and teaching
> them electrical stuff.

Interesting.  As part of my commercial pilot course, our instructor
arranged a tour of our local area control center.  We were shown all
the computer equipment (mostly DEC in those days).  Our tour guide
said much the same thing: it was easier to teach controllers about
computers than to teach computer people about air traffic control.

-- 
/~\  Charlie Gibbs                  |  In this world there are
\ /  <cgibbs@kltpzyxm.invalid>      |  two kinds of people:
 X   I'm really at ac.dekanfrus     |  1. Those who can extrapolate
/ \  if you read it the right way.  |  from incomplete data.

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Thread

Is This An Old Folks Home? Farley Flud <ff@gnulinux.rocks> - 2026-11-02 23:08 +0000
  Re: Is This An Old Folks Home? "Carlos E. R." <robin_listas@es.invalid> - 2026-11-03 02:51 +0100
    On the on-topicness of tape drives (was: Re: Is This An Old Folks Home?) Nuno Silva <nunojsilva@invalid.invalid> - 2026-11-04 23:47 +0000
      Re: On the on-topicness of tape drives Rich <rich@example.invalid> - 2026-11-05 04:14 +0000
        Re: On the on-topicness of tape drives c186282 <c186282@nnada.net> - 2026-11-05 17:29 -0500
          Re: On the on-topicness of tape drives Rich <rich@example.invalid> - 2026-11-05 22:52 +0000
            Re: On the on-topicness of tape drives c186282 <c186282@nnada.net> - 2026-11-05 19:11 -0500
              Re: On the on-topicness of tape drives Rich <rich@example.invalid> - 2026-11-06 02:41 +0000
                Re: On the on-topicness of tape drives c186282 <c186282@nnada.net> - 2026-11-05 22:31 -0500
                Re: On the on-topicness of tape drives Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2026-11-06 20:51 +0000
                Re: On the on-topicness of tape drives rbowman <bowman@montana.com> - 2026-11-07 02:41 +0000
                Re: On the on-topicness of tape drives Lars Poulsen <lars@beagle-ears.com> - 2026-11-07 06:39 -0800
                Re: On the on-topicness of tape drives rbowman <bowman@montana.com> - 2026-11-07 18:30 +0000
                Re: On the on-topicness of tape drives Lars Poulsen <lars@beagle-ears.com> - 2026-11-07 15:26 -0800
                Re: On the on-topicness of tape drives rbowman <bowman@montana.com> - 2026-11-08 01:15 +0000
                Re: On the on-topicness of tape drives The Natural Philosopher <tnp@invalid.invalid> - 2026-11-08 11:28 +0000
                Re: On the on-topicness of tape drives rbowman <bowman@montana.com> - 2026-11-08 18:14 +0000
          Re: On the on-topicness of tape drives Beej Jorgensen <beej@beej.us> - 2026-11-06 05:59 +0000
            Re: Tape Drives Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-11-06 06:18 +0000
              Re: Tape Drives Johann 'Myrkraverk' Oskarsson <johann@myrkraverk.invalid> - 2026-11-07 18:40 +0800
                Re: Tape Drives Peter Flass <Peter@Iron-Spring.com> - 2026-11-07 07:33 -0700
                Re: Tape Drives c186282 <c186282@nnada.net> - 2026-11-07 13:12 -0500
                Re: Tape Drives "Kerr-Mudd, John" <admin@127.0.0.1> - 2026-11-08 14:32 +0000
                Re: Tape Drives c186282 <c186282@nnada.net> - 2026-11-08 21:31 -0500
  Re: Is This An Old Folks Home? c186282 <c186282@nnada.net> - 2026-11-02 21:08 -0500
  Re: Is This An Old Folks Home? rbowman <bowman@montana.com> - 2026-11-03 02:26 +0000
  Re: Is This An Old Folks Home? Woozy Song <suzyw0ng@outlook.com> - 2026-11-04 09:55 +0800
    Re: Is This An Old Folks Home? c186282 <c186282@nnada.net> - 2026-11-03 22:14 -0500
      Re: Is This An Old Folks Home? Rich <rich@example.invalid> - 2026-11-04 03:54 +0000
        Re: Is This An Old Folks Home? Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2026-11-04 06:21 +0000
          Re: Is This An Old Folks Home? TJ <TJ@noneofyour.business> - 2026-11-05 20:40 -0500
            Re: Is This An Old Folks Home? c186282 <c186282@nnada.net> - 2026-11-05 21:52 -0500
              Re: Is This An Old Folks Home? "Carlos E. R." <robin_listas@es.invalid> - 2026-11-06 14:28 +0100
          My Computer History (Re: Is This An Old Folks Home?) Lars Poulsen <lars@beagle-ears.com> - 2026-11-06 18:37 -0800
            Re: My Computer History (Re: Is This An Old Folks Home?) c186282 <c186282@nnada.net> - 2026-11-07 00:51 -0500
              Re: My Computer History (Re: Is This An Old Folks Home?) Lars Poulsen <lars@beagle-ears.com> - 2026-11-07 06:20 -0800
                Re: My Computer History (Re: Is This An Old Folks Home?) Peter Flass <Peter@Iron-Spring.com> - 2026-11-07 07:38 -0700
                Re: My Computer History (Re: Is This An Old Folks Home?) Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2026-11-08 02:47 +0000
                Re: My Computer History (Re: Is This An Old Folks Home?) Robert Riches <spamtrap42@jacob21819.net> - 2026-11-08 04:23 +0000
                Re: My Computer History (Re: Is This An Old Folks Home?) Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2026-11-08 05:00 +0000
                Re: My Computer History (Re: Is This An Old Folks Home?) c186282 <c186282@nnada.net> - 2026-11-08 20:50 -0500
                Re: My Computer History (Re: Is This An Old Folks Home?) Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2026-11-09 03:53 +0000
                Re: My Computer History (Re: Is This An Old Folks Home?) "Carlos E.R." <robin_listas@es.invalid> - 2026-11-10 15:06 +0100
                Re: My Computer History (Re: Is This An Old Folks Home?) "Carlos E.R." <robin_listas@es.invalid> - 2026-11-10 15:01 +0100
              Re: My Computer History (Re: Is This An Old Folks Home?) Peter Flass <Peter@Iron-Spring.com> - 2026-11-07 07:31 -0700
                Re: My Computer History (Re: Is This An Old Folks Home?) Lars Poulsen <lars@beagle-ears.com> - 2026-11-07 06:52 -0800
                Re: My Computer History (Re: Is This An Old Folks Home?) c186282 <c186282@nnada.net> - 2026-11-07 20:09 -0500
                Re: My Computer History (Re: Is This An Old Folks Home?) Thomas Koenig <tkoenig@netcologne.de> - 2026-11-08 08:08 +0000
                Re: My Computer History (Re: Is This An Old Folks Home?) c186282 <c186282@nnada.net> - 2026-11-08 21:24 -0500
                Re: My Computer History (Re: Is This An Old Folks Home?) Lars Poulsen <lars@beagle-ears.com> - 2026-11-08 18:34 -0800
                Re: My Computer History (Re: Is This An Old Folks Home?) c186282 <c186282@nnada.net> - 2026-11-08 22:54 -0500
                Re: My Computer History (Re: Is This An Old Folks Home?) Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2026-11-09 04:39 +0000
                Re: My Computer History (Re: Is This An Old Folks Home?) c186282 <c186282@nnada.net> - 2026-11-09 21:08 -0500
                Re: My Computer History (Re: Is This An Old Folks Home?) Charlie Gibbs <cgibbs@kltpzyxm.invalid> - 2026-11-10 02:25 +0000
                Re: My Computer History Lawrence D’Oliveiro <ldo@nz.invalid> - 2026-11-10 02:32 +0000
                Re: My Computer History c186282 <c186282@nnada.net> - 2026-11-09 23:07 -0500
                Re: My Computer History (Re: Is This An Old Folks Home?) c186282 <c186282@nnada.net> - 2026-11-09 22:49 -0500
                Re: My Computer History (Re: Is This An Old Folks Home?) Lars Poulsen <lars@beagle-ears.com> - 2026-11-10 06:03 -0800
                Re: My Computer History (Re: Is This An Old Folks Home?) scott@slp53.sl.home (Scott Lurndal) - 2026-11-10 15:08 +0000
                Re: My Computer History (Re: Is This An Old Folks Home?) Peter Flass <Peter@Iron-Spring.com> - 2026-11-09 07:29 -0700
                Re: My Computer History (Re: Is This An Old Folks Home?) The Natural Philosopher <tnp@invalid.invalid> - 2026-11-09 16:11 +0000
                Re: My Computer History (Re: Is This An Old Folks Home?) c186282 <c186282@nnada.net> - 2026-11-09 21:19 -0500
                Re: My Computer History (Re: Is This An Old Folks Home?) Bob Eager <throwaway0008@eager.cx> - 2026-11-10 14:31 +0000
                Re: My Computer History (Re: Is This An Old Folks Home?) Lynn Wheeler <lynn@garlic.com> - 2026-11-09 07:48 -1000
                Re: My Computer History (Re: Is This An Old Folks Home?) c186282 <c186282@nnada.net> - 2026-11-09 21:55 -0500
                Re: My Computer History (Re: Is This An Old Folks Home?) Peter Flass <Peter@Iron-Spring.com> - 2026-11-09 21:35 -0700
                Re: spooling, My Computer History (Re: Is This An Old Folks Home?) John Levine <johnl@taugh.com> - 2026-11-09 16:56 +0000
                Re: spooling, My Computer History (Re: Is This An Old Folks Home?) c186282 <c186282@nnada.net> - 2026-11-09 21:46 -0500
                Re: spooling, My Computer History (Re: Is This An Old Folks Home?) Robert Riches <spamtrap42@jacob21819.net> - 2026-11-10 18:06 +0000
  Re: Is This An Old Folks Home? Beej Jorgensen <beej@beej.us> - 2026-11-04 19:15 +0000
    Re: Is This An Old Folks Home? Farley Flud <ff@gnulinux.rocks> - 2026-11-04 20:38 +0000
      Re: Is This An Old Folks Home? Nuno Silva <nunojsilva@invalid.invalid> - 2026-11-04 23:51 +0000
      Re: Is This An Old Folks Home? "s|b" <me@privacy.invalid> - 2026-11-05 17:48 +0100
        Re: Is This An Old Folks Home? Robert Riches <spamtrap42@jacob21819.net> - 2026-11-05 16:56 +0000
        Re: Is This An Old Folks Home? The Natural Philosopher <tnp@invalid.invalid> - 2026-11-05 20:55 +0000
  Re: Is This An Old Folks Home? "Joel W. Crump" <joelcrump@gmail.com> - 2026-11-06 12:23 -0500
    Re: Is This An Old Folks Home? Farley Flud <ff@gnulinux.rocks> - 2026-11-06 19:25 +0000
      Re: Is This An Old Folks Home? "Joel W. Crump" <joelcrump@gmail.com> - 2026-11-06 15:59 -0500
        Re: Is This An Old Folks Home? rbowman <bowman@montana.com> - 2026-11-07 02:50 +0000
          Re: Is This An Old Folks Home? Nuno Silva <nunojsilva@invalid.invalid> - 2026-11-07 09:03 +0000
            Re: Is This An Old Folks Home? rbowman <bowman@montana.com> - 2026-11-07 18:01 +0000
              Re: Is This An Old Folks Home? The Natural Philosopher <tnp@invalid.invalid> - 2026-11-07 21:55 +0000
                Re: Is This An Old Folks Home? rbowman <bowman@montana.com> - 2026-11-08 01:01 +0000
            Re: Is This An Old Folks Home? L Thorpe <lt666@sixsixsix.net> - 2026-11-07 18:31 +0000
              Re: Is This An Old Folks Home? "Joel W. Crump" <joelcrump@gmail.com> - 2026-11-07 13:39 -0500
                Re: Is This An Old Folks Home? L Thorpe <lt666@sixsixsix.net> - 2026-11-07 19:07 +0000
                Re: Is This An Old Folks Home? "Joel W. Crump" <joelcrump@gmail.com> - 2026-11-07 14:30 -0500
          Re: Is This An Old Folks Home? "Joel W. Crump" <joelcrump@gmail.com> - 2026-11-07 13:01 -0500
            Re: Is This An Old Folks Home? c186282 <c186282@nnada.net> - 2026-11-07 15:54 -0500
              Re: Is This An Old Folks Home? "Joel W. Crump" <joelcrump@gmail.com> - 2026-11-08 00:33 -0500
                Re: Is This An Old Folks Home? c186282 <c186282@nnada.net> - 2026-11-08 21:05 -0500
                Re: Is This An Old Folks Home? "Joel W. Crump" <joelcrump@gmail.com> - 2026-11-10 05:30 -0500
      Re: Is This An Old Folks Home? c186282 <c186282@nnada.net> - 2026-11-06 23:00 -0500

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