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	<id>https://www.ostan-collections.net/wiki/index.php?action=history&amp;feed=atom&amp;title=SSEC</id>
	<title>SSEC - Revision history</title>
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	<updated>2026-09-21T23:44:05Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.ostan-collections.net/wiki/index.php?title=SSEC&amp;diff=7730&amp;oldid=prev</id>
		<title>Bella at 17:56, 20 September 2026</title>
		<link rel="alternate" type="text/html" href="https://www.ostan-collections.net/wiki/index.php?title=SSEC&amp;diff=7730&amp;oldid=prev"/>
		<updated>2026-09-20T17:56:57Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 12:56, 20 September 2026&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l26&quot;&gt;Line 26:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 26:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;She is proud of herself for being a magazine cover-girl.&amp;lt;ref&amp;gt;Subject of a famous New Yorker cover.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;She is proud of herself for being a magazine cover-girl.&amp;lt;ref&amp;gt;Subject of a famous New Yorker cover.&amp;lt;/ref&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Like Harvard Mark I, she speaks with a transatlantic accent.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;Like &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[&lt;/ins&gt;Harvard Mark I &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;| Harvard Mark I-tan]]&lt;/ins&gt;, she speaks with a transatlantic accent.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br/&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===Personality===&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;===Personality===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Bella</name></author>
	</entry>
	<entry>
		<id>https://www.ostan-collections.net/wiki/index.php?title=SSEC&amp;diff=7729&amp;oldid=prev</id>
		<title>Bella: Created page with &quot;{{OSinfobox |image = ssec.jpg   |cname = SSEC |alias = IBM Selective Sequence Electronic Calculator |debut = Aug 2010&lt;ref&gt;[https://www.ostan-collections.net/forum/index.php/topic,1154.msg83872.html#msg838723 Description in More IBM-tans]&lt;/ref&gt;/Sep 2025 (rework)&lt;ref&gt;[https://www.ostan-collections.net/forum/index.php/topic,1817.msg177249.html#msg177249 Description in More IBM-tans III: The One With Actually More IBM-tans]&lt;/ref&gt; |height = 5&#039;3&quot; |haircolor= Red |eyecolor= Bro...&quot;</title>
		<link rel="alternate" type="text/html" href="https://www.ostan-collections.net/wiki/index.php?title=SSEC&amp;diff=7729&amp;oldid=prev"/>
		<updated>2026-09-20T17:56:20Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;{{OSinfobox |image = ssec.jpg   |cname = SSEC |alias = IBM Selective Sequence Electronic Calculator |debut = Aug 2010&amp;lt;ref&amp;gt;[https://www.ostan-collections.net/forum/index.php/topic,1154.msg83872.html#msg838723 Description in More IBM-tans]&amp;lt;/ref&amp;gt;/Sep 2025 (rework)&amp;lt;ref&amp;gt;[https://www.ostan-collections.net/forum/index.php/topic,1817.msg177249.html#msg177249 Description in More IBM-tans III: The One With Actually More IBM-tans]&amp;lt;/ref&amp;gt; |height = 5&amp;#039;3&amp;quot; |haircolor= Red |eyecolor= Bro...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{OSinfobox&lt;br /&gt;
|image = ssec.jpg &lt;br /&gt;
&lt;br /&gt;
|cname = SSEC&lt;br /&gt;
|alias = IBM Selective Sequence Electronic Calculator&lt;br /&gt;
|debut = Aug 2010&amp;lt;ref&amp;gt;[https://www.ostan-collections.net/forum/index.php/topic,1154.msg83872.html#msg838723 Description in More IBM-tans]&amp;lt;/ref&amp;gt;/Sep 2025 (rework)&amp;lt;ref&amp;gt;[https://www.ostan-collections.net/forum/index.php/topic,1817.msg177249.html#msg177249 Description in More IBM-tans III: The One With Actually More IBM-tans]&amp;lt;/ref&amp;gt;&lt;br /&gt;
|height = 5&amp;#039;3&amp;quot;&lt;br /&gt;
|haircolor= Red&lt;br /&gt;
|eyecolor= Bronze&lt;br /&gt;
|apfaction = [[Deceased]]&lt;br /&gt;
|lineage= IBM&lt;br /&gt;
&lt;br /&gt;
|osper = Selective Sequence Electronic Calculator&lt;br /&gt;
|osdev = IBM&lt;br /&gt;
|reldate = 1948&lt;br /&gt;
|lastrel = 1952&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Technical details==&lt;br /&gt;
The SSEC was one of the last electromechanical computers and an object of publicity for the IBM corporation.&lt;br /&gt;
&lt;br /&gt;
==Character details==&lt;br /&gt;
===Physical===&lt;br /&gt;
SSEC-tan is depicted as an automaton with medium skintone, bronze eyes, red hair, and a glass chassis with exposed machinery. She has old Hollywood good looks &amp;lt;ref&amp;gt;Stylish design, meant to be looked at.&amp;lt;/ref&amp;gt; and a sense of fashion that trends toward 1940s and 20s/art deco style.&amp;lt;ref&amp;gt;&amp;quot;Behind the times&amp;quot; like other mechanical computers, but less so than some of the others.&amp;lt;/ref&amp;gt; She dresses in a sheer jacket studded with many red jewels, long bronze &amp;amp; silver gown, and red gemstone jewelry, and red high heels. Her makeup is smokey and dramatic, taking more after 1920s than 40s contemporary looks.&lt;br /&gt;
&lt;br /&gt;
She is proud of herself for being a magazine cover-girl.&amp;lt;ref&amp;gt;Subject of a famous New Yorker cover.&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Like Harvard Mark I, she speaks with a transatlantic accent.&lt;br /&gt;
&lt;br /&gt;
===Personality===&lt;br /&gt;
SSEC-tan is intelligent, quick-witted and sociable. Considers the people of New York City her friends and gets along easily with humans, and doesn&amp;#039;t feel particularly isolated even if she doesn&amp;#039;t interact much with other computers. A born performer, thinks of the world as her stage and people broadly as her audience. &lt;br /&gt;
&lt;br /&gt;
She is a talented mathematician and trained astronomer with particular interest in lunar &amp;amp; planetary mechanics,&amp;lt;ref&amp;gt;Used to calculate celestial mechanics.&amp;lt;/ref&amp;gt; who prides herself for helping man to the moon.&amp;lt;ref&amp;gt;Calculated tables used by NASA including the Apollo Program.&amp;lt;/ref&amp;gt; Despite this she remains more of a &amp;quot;visionary&amp;quot; inventor than a hands-on tinkerer,&amp;lt;ref&amp;gt;Used in the nuclear propelled aircraft program.&amp;lt;/ref&amp;gt; and deeply modest about her talents.&amp;lt;ref&amp;gt;IBM marketing heavily emphasized the SSEC as an aid to scientists, not a replacement.&amp;lt;/ref&amp;gt; She is a pacifist and thinks her cousins wasted their talents in the military.&amp;lt;ref&amp;gt;Co-designer Wallace Eckert believed HM1 failed to live up to its potential in the Navy.&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
She is a bon vivant who loves socializing, nights out on the town,&amp;lt;ref&amp;gt;Housed behind glass at IBM HQ in Manhattan.&amp;lt;/ref&amp;gt; and gambling.&amp;lt;ref&amp;gt;Large scale application of monte carlo methods.&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
==Relationships and family==&lt;br /&gt;
SSEC-tan considers herself both the culmination of the IBM calculators, and the rightful founder of the IBM computer families.&amp;lt;ref&amp;gt;Bridged IBM&amp;#039;s older &amp;amp; newer technologies.&amp;lt;/ref&amp;gt; She has no true heirs, but considers IBM 650 a protegee.&amp;lt;ref&amp;gt;Shared development team.&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
SSEC-tan is an estranged cousin of the Harvard Marks&amp;lt;ref&amp;gt;IBM project inspired by ASCC/HM1.&amp;lt;/ref&amp;gt; with particular enmity for Harvard Mark I.&amp;lt;ref&amp;gt;Acrimonious falling out between Watson Sr. &amp;amp; Aiken.&amp;lt;/ref&amp;gt; She also dislikes [[IAS | IAS-tan]].&amp;lt;ref&amp;gt;IBM 701 (commercialized IAS computer) replaced the SSEC.&amp;lt;/ref&amp;gt;&lt;br /&gt;
&lt;br /&gt;
==History and Background==&lt;br /&gt;
{{WIP}}&lt;br /&gt;
&lt;br /&gt;
==Notes==&lt;br /&gt;
&lt;br /&gt;
==References==&lt;br /&gt;
&lt;br /&gt;
[[Category:Mainframes]]&lt;br /&gt;
[[Category:Historical]]&lt;br /&gt;
[[Category:Deceased OS-tan]]&lt;br /&gt;
[[Category:IBM]]&lt;/div&gt;</summary>
		<author><name>Bella</name></author>
	</entry>
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