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	<title>DistOS 2019F 2019-09-16 - Revision history</title>
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	<updated>2026-04-08T03:22:30Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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		<id>https://homeostasis.scs.carleton.ca/wiki/index.php?title=DistOS_2019F_2019-09-16&amp;diff=22411&amp;oldid=prev</id>
		<title>Soma: Created page with &quot;==Readings==  The Alto: * [https://homeostasis.scs.carleton.ca/~soma/distos/2014w/alto.pdf Thacker et al., &quot;Alto: A Personal computer&quot; (1979)]  ([https://archive.org/details/b...&quot;</title>
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		<updated>2019-09-16T15:31:48Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;==Readings==  The Alto: * [https://homeostasis.scs.carleton.ca/~soma/distos/2014w/alto.pdf Thacker et al., &amp;quot;Alto: A Personal computer&amp;quot; (1979)]  ([https://archive.org/details/b...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;==Readings==&lt;br /&gt;
&lt;br /&gt;
The Alto:&lt;br /&gt;
* [https://homeostasis.scs.carleton.ca/~soma/distos/2014w/alto.pdf Thacker et al., &amp;quot;Alto: A Personal computer&amp;quot; (1979)]  ([https://archive.org/details/bitsavers_xeroxparcttoAPersonalComputer_6560658 archive.org])&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==Notes from class==&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
The Alto&lt;br /&gt;
--------&lt;br /&gt;
&lt;br /&gt;
* what were the &amp;quot;emulators&amp;quot;?&lt;br /&gt;
* technology?&lt;br /&gt;
&lt;br /&gt;
The alto was the realization of Engelbart&amp;#039;s vision (well, start of it)&lt;br /&gt;
&lt;br /&gt;
The big inventions&lt;br /&gt;
* ethernet (LAN)&lt;br /&gt;
* laser printer&lt;br /&gt;
* GUI&lt;br /&gt;
* object-oriented programming (not first, but...smalltalk!)&lt;br /&gt;
&lt;br /&gt;
Used other cool things&lt;br /&gt;
* raster displays&lt;br /&gt;
* mouse&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Innovation started bottom-up&lt;br /&gt;
 - because the hardware was so weak&lt;br /&gt;
&lt;br /&gt;
Xerox gave us desktop publishing&lt;br /&gt;
 - but Apple ran with it&lt;br /&gt;
&lt;br /&gt;
laser printers require many many more &amp;quot;pixels&amp;quot; than screen displays&lt;br /&gt;
 - 300dpi+ versus 72dpi or less&lt;br /&gt;
 - so they also had to figure out how to handle the ridiculous memory requirements of laser printing&lt;br /&gt;
&lt;br /&gt;
Why is the Alto relevant to this course?&lt;br /&gt;
&lt;br /&gt;
(did they build a distributed OS?)&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;/div&gt;</summary>
		<author><name>Soma</name></author>
	</entry>
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