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<div class="">Hi Richard:</div>
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<div class="">This thread, and your reference to Saturn V, prompts me to recall that when in 1957 I joined the English Electric Company’s Atomic Power Division, in Whetstone, just outside Leicester, analogue computing was in the ascendant there. There was just
one digital computer, a DEUCE, but I and my colleagues were confident of the superior prospects for digital over analogue computing - and were soon proved right. We knew a little of the large efforts at Whetstone on analogue computer construction, culminating
in a huge one called SATURN that filled a large two storey building. This project was I understood still in difficulties when I left English Electric in 1964 to join the IBM T J Watson Research Center. So I am surprised to learn now that the analogue efforts
at Whetstone were regarded as a big success into the 1970s, at least according to this account, which I’ve just found:</div>
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<div class="">"In 1957 the Consortium, now know as NNC, constructed at Whetstone an analogue computer known as PLUTO having 115 amplifiers. This was followed in 1959 by MARS, having 210 amplifiers. Both machines were phased out in 1959/1960 and replaced by
Saturn having six consoles each having 252 amplifiers, 600 potentiometer and 76 non-linear devices. Over the years these consoles were trunked together to yield a 1500 amplifier which was subsequently supplemented in 1972 with an EAI 8812 analogue computer.
It is believed that the SATURN was the largest analogue computer ever built. Excellent service was given by this machine until 1978 when it was scrapped."</div>
<div class="">Advances in Nuclear Science and Technology, Volume 17: Simulators for Nuclear Power (eds. Lewins and Becker) p. 7.</div>
<div class=""><a href="https://books.google.co.uk/books?isbn=1461321832" class="">https://books.google.co.uk/books?isbn=1461321832</a> </div>
<div class=""><br class="">
</div>
<div class="">I do recall one of the analogue computers being scrapped, and one of my colleagues being almost in tears because he found out too late that it had been carted away, before he had a chance to plunder it his electronics hobbies.</div>
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<div class="">Cheers</div>
<div class=""><br class="">
</div>
<div class="">Brian Randell</div>
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<blockquote type="cite" class="">
<div class="">On 6 Jul 2018, at 07:54, Richard Vahrenkamp <<a href="mailto:vahrenkamp2016@gmx.de" class="">vahrenkamp2016@gmx.de</a>> wrote:</div>
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<p class="MsoNormal">Dear SIGCIS researchers,</p>
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<div class="">In my lecture at the ICOHTEC annual meeting in St. Etienne, I point to the dominance of the subject of the Neumann Computer in the historiography and show on the basis of numerous sources that in the Californian cluster of the aircraft industry,
in addition to the IAS in Princeton, a second birthplace of the computing machines (mainly with analog computers) was created after 1944, which was previously considered by the research little.</div>
<p class="MsoNormal">The aircraft cluster found no use for the digital von Neumann machine.</p>
<p class="MsoNormal">Since von Neumann's machine was merely academic and was not used in industry, John von Neumann had to invent fields of application in the future as the legitimacy of his project. He opted for meteorology - although it is not clear that
analog computers could not offer solutions here as well.</p>
<p class="MsoNormal">Until 1960, the race between analog and digital computers in aircraft and missile industry was not decided in favor of the latter; in 1961, NASA commissioned a large general-purpose analog computer for the Saturn V project.</p>
<div class=""> <br class="webkit-block-placeholder">
</div>
<p class="MsoNormal">My thesis of the aviation industry as the source of computing machines after 1944 can also be applied to other countries with strong aircraft industries, such as England and the Soviet Union. It was also no coincidence that Zuse‘s Z3, the
first electric digital computer in Germany, was created in 1941 in the context of the Berlin aircraft industry.</p>
<p class="MsoNormal"><br class="">
</p>
<p class="MsoNormal">With kind regards from Berlin</p>
<p class="MsoNormal">Richard Vahrenkamp<br class="">
</p>
<div class=""><br class="webkit-block-placeholder">
</div>
<pre class="moz-signature" cols="72">--
********************************************
Prof. Dr. Richard Vahrenkamp
Logistik Consulting Berlin
Phone 0177- 628 3325
E-Mail: <a class="moz-txt-link-abbreviated" href="mailto:Vahrenkamp2016@gmx.de">Vahrenkamp2016@gmx.de</a>
Web: <a class="moz-txt-link-abbreviated" href="http://www.vahrenkamp.org/">www.vahrenkamp.org</a>
Trendelenburgstr. 16
14057 Berlin
********************************************* </pre>
</div>
_______________________________________________<br class="">
This email is relayed from members at <a href="http://sigcis.org" class="">sigcis.org</a>, the email discussion list of SHOT SIGCIS. Opinions expressed here are those of the member posting and are not reviewed, edited, or endorsed by SIGCIS. The list archives
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</blockquote>
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<br class="">
<div class="">
<div style="orphans: auto; text-align: start; text-indent: 0px; widows: auto; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">
<div style="orphans: auto; text-align: start; text-indent: 0px; widows: auto; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">
<div class=""><span class="Apple-style-span" style="border-collapse: separate; font-variant-ligatures: normal; font-variant-position: normal; font-variant-numeric: normal; font-variant-alternates: normal; font-variant-east-asian: normal; line-height: normal; border-spacing: 0px;">
<div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">
<div class="">—</div>
<div class=""><br class="">
</div>
<div class="">School of Computing Science, Newcastle University, Newcastle upon Tyne, NE1 7RU</div>
<div class="">EMAIL = <a href="mailto:Brian.Randell@ncl.ac.uk" class="">Brian.Randell@ncl.ac.uk</a> PHONE = +44 191 208 7923</div>
</div>
</span><span style="color: rgb(0, 0, 0); letter-spacing: normal; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; orphans: 2; widows: 2;" class="">URL = </span><a href="http://www.ncl.ac.uk/computing/people/profile/brianrandell.html" class="">http://www.ncl.ac.uk/computing/people/profile/brianrandell.html</a></div>
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