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		<id>http://fileformats.archiveteam.org/index.php?action=history&amp;feed=atom&amp;title=Apple_SOS</id>
		<title>Apple SOS - Revision history</title>
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		<updated>2026-08-26T11:21:30Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=Apple_SOS&amp;diff=16283&amp;oldid=prev</id>
		<title>Dan Tobias at 02:16, 18 February 2014</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=Apple_SOS&amp;diff=16283&amp;oldid=prev"/>
				<updated>2014-02-18T02:16:42Z</updated>
		
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&lt;table class='diff diff-contentalign-left'&gt;
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			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 02:16, 18 February 2014&lt;/td&gt;
			&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 4:&lt;/td&gt;
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&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;|[[Operating Systems]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;|[[Operating Systems]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;|[[Apple &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;SDOS&lt;/del&gt;]]&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;|[[Apple &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;SOS&lt;/ins&gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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&lt;/table&gt;</summary>
		<author><name>Dan Tobias</name></author>	</entry>

	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=Apple_SOS&amp;diff=16282&amp;oldid=prev</id>
		<title>Dan Tobias: Created page with &quot;{| |Software | &gt; |Operating Systems | &gt; |Apple SDOS |}  '''Apple SOS''' (&quot;Apple Sauce&quot;... hee hee), or &quot;Sophisticated Operating System&quot;, was the operating system f...&quot;</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=Apple_SOS&amp;diff=16282&amp;oldid=prev"/>
				<updated>2014-02-18T02:16:29Z</updated>
		
		<summary type="html">&lt;p&gt;Created page with &amp;quot;{| |&lt;a href=&quot;/wiki/Software&quot; title=&quot;Software&quot;&gt;Software&lt;/a&gt; | &amp;gt; |&lt;a href=&quot;/wiki/Operating_Systems&quot; title=&quot;Operating Systems&quot;&gt;Operating Systems&lt;/a&gt; | &amp;gt; |&lt;a href=&quot;/index.php?title=Apple_SDOS&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Apple SDOS (page does not exist)&quot;&gt;Apple SDOS&lt;/a&gt; |}  &amp;#039;&amp;#039;&amp;#039;Apple SOS&amp;#039;&amp;#039;&amp;#039; (&amp;quot;Apple Sauce&amp;quot;... hee hee), or &amp;quot;Sophisticated Operating System&amp;quot;, was the operating system f...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{|&lt;br /&gt;
|[[Software]]&lt;br /&gt;
| &amp;gt;&lt;br /&gt;
|[[Operating Systems]]&lt;br /&gt;
| &amp;gt;&lt;br /&gt;
|[[Apple SDOS]]&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
'''Apple SOS''' (&amp;quot;Apple Sauce&amp;quot;... hee hee), or &amp;quot;Sophisticated Operating System&amp;quot;, was the operating system for the Apple III computer, which was a failure more due to hardware problems than to any problem with its systems software, though its lack of compatibility with the popular Apple II (you could boot in emulation mode, but it didn't share disk files due to different filesystems) may have also been a factor.&lt;br /&gt;
&lt;br /&gt;
The OS was indeed sophisticated for its time; among other things, it used a complex scheme of memory management to allow an 8-bit processor to seamlessly access well over the 64K directly addressable in 8 bits.&lt;br /&gt;
&lt;br /&gt;
The [[ProDOS file system|filesystem]] was kept in the later [[ProDOS]] for the Apple II series.&lt;br /&gt;
&lt;br /&gt;
== Links ==&lt;br /&gt;
* [[Wikipedia:Apple SOS|Wikipedia article]]&lt;br /&gt;
* [http://rbelmont.mameworld.info/?p=884 Emulating Apple III]&lt;br /&gt;
&lt;br /&gt;
[[Category:Apple]]&lt;br /&gt;
[[Category:Operating Systems]]&lt;br /&gt;
[[Category:Software]]&lt;/div&gt;</summary>
		<author><name>Dan Tobias</name></author>	</entry>

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