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	<title>MUMPS/MUMPS-15/20200522 - Revision history</title>
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	<updated>2026-04-24T10:19:23Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://vistapedia.com/index.php?title=MUMPS/MUMPS-15/20200522&amp;diff=19310&amp;oldid=prev</id>
		<title>DavidWhitten: Created page with &quot;from https://www.mail-archive.com/simh@trailing-edge.com/msg08975.html &lt;pre&gt; Bob Supnik Fri, 22 May 2020 09:38:36 -0700  Before MUMPS-11, there was MUMPS-15. It is the only on...&quot;</title>
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		<updated>2022-10-21T19:31:00Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;from https://www.mail-archive.com/simh@trailing-edge.com/msg08975.html &amp;lt;pre&amp;gt; Bob Supnik Fri, 22 May 2020 09:38:36 -0700  Before MUMPS-11, there was MUMPS-15. It is the only on...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;from https://www.mail-archive.com/simh@trailing-edge.com/msg08975.html&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Bob Supnik Fri, 22 May 2020 09:38:36 -0700&lt;br /&gt;
&lt;br /&gt;
Before MUMPS-11, there was MUMPS-15. It is the only one of the PDP-15&amp;#039;s DEC operating systems that is still missing. TA PDF assembly listing of XVM/MUMPS-15 (or perhaps only part of it) exists, but it is scribbled over in places, as though it were a developer&amp;#039;s &amp;quot;in progress&amp;quot; listing.&lt;br /&gt;
&lt;br /&gt;
There&amp;#039;s also a pocket card for a PDP-9 timesharing system developed at the Ontario Institute for Studies in Education. No other trace has been found.&lt;br /&gt;
&lt;br /&gt;
/Bob&lt;br /&gt;
&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;/div&gt;</summary>
		<author><name>DavidWhitten</name></author>
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