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<p>Yes, BUT the most significant difference was the introduction commercially of virtual memory which was a big change for IBM. Their first attempt as I can remember was at MIT with the 360/67.</p>
<p>IT History Society One Blackfield Drive – Suite 331 Tiburon, CA 94920 (415) 435-2263 info@ITHistory.org www.ITHistory.org Ensuring the Future by Preserving the Past </p>
<p>-----Original Message----- From: members-bounces@sigcis.org [<a href="mailto:members-bounces@sigcis.org">members-bounces@sigcis.org</a>] On Behalf Of Ceruzzi, Paul Sent: Saturday, December 01, 2012 2:51 PM To: sigcis Subject: Re: [SIGCIS-Members] IBM Mainframes at AT&T</p>
<p>If I am not mistaken, the main difference between the System/360 and the 370 (other than the color of the console) was that the 370 used semiconductor (IBM called it “monolithic”) memory instead of core. One consequence of that change was that the memory now was volatile, so in order to initiate the system, you had to load code from an external memory device. IBM invented the floppy disk for that purpose. As Paul Harvey used to say, “that's the rest of the story.”</p>
<p>The other thing I noticed about the video was the absence of long hair — this was the early 1970s after all. Thompson & Ritchie were in another AT&T site, and maybe kept off-camera.</p>
<p>Paul</p>
<p><em>_____________________________________</em>_ From: members-bounces@sigcis.org [members-bounces@sigcis.org] On Behalf Of Janet Abbate [abbate@vt.edu] Sent: Friday, November 30, 2012 5:29 PM To: sigcis Subject: Re: [SIGCIS-Members] IBM Mainframes at AT&T</p>
<p>I'd not seen that before, thanks for posting it. The soundtrack definitely puts you back in the '70s!</p>
<p>I agree that the pinup photo, if not actually staged for the film, must have been deliberate. Maybe they were trying to wake up the viewers from a synthesizer-induced haze.</p>
<p>Janet</p>
<p>On Nov 30, 2012, at 12:36 PM, M. Hicks wrote:</p>
<blockquote><p>What a great video. Thanks for sharing it, Paul. I love how it goes</p></blockquote>
<p>through the process step-by-step, and explains the tools. I think it will be very useful to show to my history of computing class.</p>
<blockquote><pre>Regarding the "inappropriate picture" I wonder if that was actually put</pre></blockquote>
<p>there specifically for the video, as it has such a prominent place in the film? Certainly adds some interest to the 370, but it's pretty distracting! Would the culture of that installation have allowed such a picture to be there long term, do you think?</p>
<blockquote><pre>Best,</pre>
<pre>Marie</pre>
<pre>______________________
Marie Hicks, Ph.D.
Asst. Professor, History of Technology Illinois Institute of
Technology Chicago, IL USA mariehicks.net | mhicks1@iit.edu |
@histoftech</pre>
<pre>On Nov 30, 2012, at 10:54, "Ceruzzi, Paul" <CeruzziP@si.edu> wrote:</pre>
<blockquote><p>Maybe you’ve seen this resource before, but here is a video about what</p></blockquote></blockquote>
<p>computing was like at AT&T in the early 1970s. Believe it or not, sometimes I actually miss those days! [Warning: there is an inappropriate photo pasted to the console at 5:40. I do not recall such things, but I do remember a very large print-out of “Snoopy” across several sheets of fan-fold paper].</p>
<blockquote><blockquote></blockquote></blockquote>
<p><a href="http://u106606.sendgrid.org/wf/click?upn=FBgt-2B9gg4fVX4hnN96FHeuHbnfvs1YfC07cyqavHwCVKCDcQilP4MVcdCb1772Uojjy5MU6bAv6hCyDh-2BzfolaG0McPhZ8RtKm4PHPhEirWUm11f-2FHMUQWlaS3lQNvhJ_4xVQBtoGnN5VhnDrGAOcP-2F9CWH2EGm4lBCc4YOumtqlEzZ-2BYWSk8DM43shwIr8wlHQ532Uscv-2F-2BJVkHVisMiZ7BHh28vdUcj1gu00BZK6IyRaPgEQd53ZMysDvOU3kKBOSwTz6-2FdyMpYns6mshCyKkP-2B1QWbS12Z9GvBLtmpzgM-3D">http://techchannel.att.com/play-video.cfm/2012/11/28/AT&T-Archives-Holmdel-C</a> omputer-Center-Part-1.</p>
<blockquote><blockquote><pre>Paul E. Ceruzzi
Chair, Division of Space History
National Air & Space Museum
MRC 311; PO Box 37012
Washington, DC 20013-7012
202-633-2414
<http://www.nasm.si.edu/staffDetail.cfm?staffID=24></pre>
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<p>Dr. Janet Abbate Associate Professor Science & Technology in Society Virginia Tech</p>
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