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		<id>http://fileformats.archiveteam.org/index.php?action=history&amp;feed=atom&amp;title=Prodigy</id>
		<title>Prodigy - Revision history</title>
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		<updated>2026-04-17T19:14:04Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=Prodigy&amp;diff=34804&amp;oldid=prev</id>
		<title>Dan Tobias at 00:18, 12 February 2020</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=Prodigy&amp;diff=34804&amp;oldid=prev"/>
				<updated>2020-02-12T00:18:48Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
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				&lt;col class='diff-content' /&gt;
			&lt;tr valign='top'&gt;
			&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 00:18, 12 February 2020&lt;/td&gt;
			&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 17:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 17:&lt;/td&gt;&lt;/tr&gt;
&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;* [http://www.theatlantic.com/technology/archive/2014/07/where-online-services-go-when-they-die/374099/ Where online services go when they die]&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;* [http://www.theatlantic.com/technology/archive/2014/07/where-online-services-go-when-they-die/374099/ Where online services go when they die]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&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;* [http://www.theatlantic.com/technology/archive/2014/06/the-insane-new-kids-on-the-block-fan-community-on-prodigy/373290/ Reminiscences of the NKOTB fan community on Prodigy]&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;* [http://www.theatlantic.com/technology/archive/2014/06/the-insane-new-kids-on-the-block-fan-community-on-prodigy/373290/ Reminiscences of the NKOTB fan community on Prodigy]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&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;* [&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;http&lt;/del&gt;://www.dan.info/sampledata/PRODIGY.TXT Panicky warnings about STAGE.DAT transmitting private data]&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;* [&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;https&lt;/ins&gt;://www.dan.info/sampledata/PRODIGY.TXT Panicky warnings about STAGE.DAT transmitting private data]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&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;* [http://cyber.eserver.org/prodigy.txt Another version of this old warning text]&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;* [http://cyber.eserver.org/prodigy.txt Another version of this old warning text]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&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;* [http://www.vintagecomputing.com/index.php/archives/171 Recreation of a Prodigy online game]&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;* [http://www.vintagecomputing.com/index.php/archives/171 Recreation of a Prodigy online game]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Dan Tobias</name></author>	</entry>

	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=Prodigy&amp;diff=34785&amp;oldid=prev</id>
		<title>Dan Tobias: /* Sample files */</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=Prodigy&amp;diff=34785&amp;oldid=prev"/>
				<updated>2020-02-12T00:06:59Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Sample files&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
			&lt;tr valign='top'&gt;
			&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 00:06, 12 February 2020&lt;/td&gt;
			&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 11:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 11:&lt;/td&gt;&lt;/tr&gt;
&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;/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;/td&gt;&lt;/tr&gt;
&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;== Sample files ==&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;== Sample files ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&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;* [&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;http&lt;/del&gt;://www.dan.info/sampledata/prodigy/1994/STAGE.DAT STAGE.DAT file from DOS Prodigy, 1994]&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;* [&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;https&lt;/ins&gt;://www.dan.info/sampledata/prodigy/1994/STAGE.DAT STAGE.DAT file from DOS Prodigy, 1994]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&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;* [&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;http&lt;/del&gt;://www.dan.info/sampledata/prodigy/1995/STAGE.DAT STAGE.DAT file from Windows Prodigy, 1995]&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;* [&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;https&lt;/ins&gt;://www.dan.info/sampledata/prodigy/1995/STAGE.DAT STAGE.DAT file from Windows Prodigy, 1995]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&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;/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;/td&gt;&lt;/tr&gt;
&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;== Links ==&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;== Links ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Dan Tobias</name></author>	</entry>

	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=Prodigy&amp;diff=31604&amp;oldid=prev</id>
		<title>Dan Tobias: /* STAGE.DAT */</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=Prodigy&amp;diff=31604&amp;oldid=prev"/>
				<updated>2019-05-14T03:12:40Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;STAGE.DAT&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
			&lt;tr valign='top'&gt;
			&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 03:12, 14 May 2019&lt;/td&gt;
			&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 8:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 8:&lt;/td&gt;&lt;/tr&gt;
&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;A notable file-format-related issue was the service's storage of a file called &amp;quot;STAGE.DAT&amp;quot; on the user's hard disk (usually in a C:\PRODIGY\ directory, or C:\PRODIGYW\ for the Windows version), which cached various things from the service to improve access speed. This file proved controversial as it sometimes seemed to contain personal data from elsewhere in users' hard disks, leading to fears that Prodigy was spying on its users, but it was apparently just a side effect of the disk block allocation routines which sometimes led to parts of deleted files being present until overwritten by other data, and this data was not transmitted to Prodigy. More recently, that file got back in the news after it was discovered that parts of the long-dead Prodigy content could be recovered from users' STAGE.DAT files, like flies preserved in amber, making the files of interest to historians and archivists.&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;A notable file-format-related issue was the service's storage of a file called &amp;quot;STAGE.DAT&amp;quot; on the user's hard disk (usually in a C:\PRODIGY\ directory, or C:\PRODIGYW\ for the Windows version), which cached various things from the service to improve access speed. This file proved controversial as it sometimes seemed to contain personal data from elsewhere in users' hard disks, leading to fears that Prodigy was spying on its users, but it was apparently just a side effect of the disk block allocation routines which sometimes led to parts of deleted files being present until overwritten by other data, and this data was not transmitted to Prodigy. More recently, that file got back in the news after it was discovered that parts of the long-dead Prodigy content could be recovered from users' STAGE.DAT files, like flies preserved in amber, making the files of interest to historians and archivists.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&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;/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;/td&gt;&lt;/tr&gt;
&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;Researcher Jim Carpenter analyzed the file in 2014, determining that the file contained an entire filesystem of its own, which he discovered was in [[FAT12]] format. Other details of what was stored in the file could be discerned by reading Prodigy's patent on the associated technology, [http://www.google.com/patents/US5347632 US Patent 5,347,632]. For a change, this actually works the way the patent system was originally intended; the patent monopoly is granted in exchange for the inventor giving full disclosure of how it works (not keeping it a trade secret) so that others can build on it and will be able to have unrestricted use of the &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;tehcniques &lt;/del&gt;once the patent expires. Unfortunately, this is often defeated in modern patents by the use of inscrutable legalese making it hard to find any coherent technical facts in the patent text. In this case, however, Prodigy's techniques are outlined in very specific detail.&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;Researcher Jim Carpenter analyzed the file in 2014, determining that the file contained an entire filesystem of its own, which he discovered was in [[FAT12]] format. Other details of what was stored in the file could be discerned by reading Prodigy's patent on the associated technology, [http://www.google.com/patents/US5347632 US Patent 5,347,632]. For a change, this actually works the way the patent system was originally intended; the patent monopoly is granted in exchange for the inventor giving full disclosure of how it works (not keeping it a trade secret) so that others can build on it and will be able to have unrestricted use of the &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;techniques &lt;/ins&gt;once the patent expires. Unfortunately, this is often defeated in modern patents by the use of inscrutable legalese making it hard to find any coherent technical facts in the patent text. In this case, however, Prodigy's techniques are outlined in very specific detail.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&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;/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;/td&gt;&lt;/tr&gt;
&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;== Sample files ==&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;== Sample files ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Dan Tobias</name></author>	</entry>

	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=Prodigy&amp;diff=28057&amp;oldid=prev</id>
		<title>Jsummers: Category:Websites and online services</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=Prodigy&amp;diff=28057&amp;oldid=prev"/>
				<updated>2017-05-28T15:11:44Z</updated>
		
		<summary type="html">&lt;p&gt;Category:Websites and online services&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
			&lt;tr valign='top'&gt;
			&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 15:11, 28 May 2017&lt;/td&gt;
			&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 22:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 22:&lt;/td&gt;&lt;/tr&gt;
&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;/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;/td&gt;&lt;/tr&gt;
&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;[[Category:IBM]]&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;[[Category:IBM]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&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;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;[[Category:Websites and online services]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Jsummers</name></author>	</entry>

	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=Prodigy&amp;diff=18217&amp;oldid=prev</id>
		<title>Dan Tobias: /* Sample data */</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=Prodigy&amp;diff=18217&amp;oldid=prev"/>
				<updated>2014-07-14T13:23:11Z</updated>
		
		<summary type="html">&lt;p&gt;‎&lt;span dir=&quot;auto&quot;&gt;&lt;span class=&quot;autocomment&quot;&gt;Sample data&lt;/span&gt;&lt;/span&gt;&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
			&lt;tr valign='top'&gt;
			&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 13:23, 14 July 2014&lt;/td&gt;
			&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 10:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 10:&lt;/td&gt;&lt;/tr&gt;
&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;Researcher Jim Carpenter analyzed the file in 2014, determining that the file contained an entire filesystem of its own, which he discovered was in [[FAT12]] format. Other details of what was stored in the file could be discerned by reading Prodigy's patent on the associated technology, [http://www.google.com/patents/US5347632 US Patent 5,347,632]. For a change, this actually works the way the patent system was originally intended; the patent monopoly is granted in exchange for the inventor giving full disclosure of how it works (not keeping it a trade secret) so that others can build on it and will be able to have unrestricted use of the tehcniques once the patent expires. Unfortunately, this is often defeated in modern patents by the use of inscrutable legalese making it hard to find any coherent technical facts in the patent text. In this case, however, Prodigy's techniques are outlined in very specific detail.&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;Researcher Jim Carpenter analyzed the file in 2014, determining that the file contained an entire filesystem of its own, which he discovered was in [[FAT12]] format. Other details of what was stored in the file could be discerned by reading Prodigy's patent on the associated technology, [http://www.google.com/patents/US5347632 US Patent 5,347,632]. For a change, this actually works the way the patent system was originally intended; the patent monopoly is granted in exchange for the inventor giving full disclosure of how it works (not keeping it a trade secret) so that others can build on it and will be able to have unrestricted use of the tehcniques once the patent expires. Unfortunately, this is often defeated in modern patents by the use of inscrutable legalese making it hard to find any coherent technical facts in the patent text. In this case, however, Prodigy's techniques are outlined in very specific detail.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&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;/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;/td&gt;&lt;/tr&gt;
&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;== Sample &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;data &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;== Sample &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;files &lt;/ins&gt;==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&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;* [http://www.dan.info/sampledata/prodigy/1994/STAGE.DAT STAGE.DAT file from DOS Prodigy, 1994]&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;* [http://www.dan.info/sampledata/prodigy/1994/STAGE.DAT STAGE.DAT file from DOS Prodigy, 1994]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&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;* [http://www.dan.info/sampledata/prodigy/1995/STAGE.DAT STAGE.DAT file from Windows Prodigy, 1995]&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;* [http://www.dan.info/sampledata/prodigy/1995/STAGE.DAT STAGE.DAT file from Windows Prodigy, 1995]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Dan Tobias</name></author>	</entry>

	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=Prodigy&amp;diff=18216&amp;oldid=prev</id>
		<title>Dan Tobias at 01:42, 14 July 2014</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=Prodigy&amp;diff=18216&amp;oldid=prev"/>
				<updated>2014-07-14T01:42:36Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
			&lt;tr valign='top'&gt;
			&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 01:42, 14 July 2014&lt;/td&gt;
			&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 3:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 3:&lt;/td&gt;&lt;/tr&gt;
&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;}}&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;}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&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;'''Prodigy''' was an online service mostly active in the early 1990s, formed originally by IBM and Sears as a consumer videotex service. The transmissions (with text and graphics) were primarily based on [[NAPLPS]], but had many proprietary elements, and required special Prodigy software to use. There were a number of active communities within the forums, including fan communities for various things (including teen pop crazes such as New Kids On The Block), but as the '90s wore on [[AOL]] got more popular and Prodigy faded out. In 1995 Prodigy was among the first consumer online services to make [[Web]] access available, using its own browser embedded in the Prodigy software, but ultimately the Internet eclipsed the service and Prodigy moved to a new &amp;quot;Prodigy Internet&amp;quot; service, keeping the old service around for a while as &amp;quot;Prodigy Classic&amp;quot; before finally killing it altogether in 1999.&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;'''Prodigy''' was an online service mostly active in the early 1990s, formed originally by IBM and Sears as a consumer videotex service. The transmissions (with text and graphics) were primarily based on [[NAPLPS]], but had many proprietary elements, and required special Prodigy software to use. There were a number of active communities within the forums, including fan communities for various things (including teen pop crazes such as New Kids On The Block), but as the '90s wore on [[AOL]] got more popular and Prodigy faded out. In 1995 Prodigy was among the first consumer online services to make [[Web]] access available, using its own browser embedded in the Prodigy software, but ultimately the Internet eclipsed the service and Prodigy moved to a new &amp;quot;Prodigy Internet&amp;quot; service, keeping the old service around for a while as &amp;quot;Prodigy Classic&amp;quot; before finally killing it altogether in 1999.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&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;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&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;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;== STAGE.DAT ==&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&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;/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;/td&gt;&lt;/tr&gt;
&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;A notable file-format-related issue was the service's storage of a file called &amp;quot;STAGE.DAT&amp;quot; on the user's hard disk (usually in a C:\PRODIGY\ directory, or C:\PRODIGYW\ for the Windows version), which cached various things from the service to improve access speed. This file proved controversial as it sometimes seemed to contain personal data from elsewhere in users' hard disks, leading to fears that Prodigy was spying on its users, but it was apparently just a side effect of the disk block allocation routines which sometimes led to parts of deleted files being present until overwritten by other data, and this data was not transmitted to Prodigy. More recently, that file got back in the news after it was discovered that parts of the long-dead Prodigy content could be recovered from users' STAGE.DAT files, like flies preserved in amber, making the files of interest to historians and archivists.&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;A notable file-format-related issue was the service's storage of a file called &amp;quot;STAGE.DAT&amp;quot; on the user's hard disk (usually in a C:\PRODIGY\ directory, or C:\PRODIGYW\ for the Windows version), which cached various things from the service to improve access speed. This file proved controversial as it sometimes seemed to contain personal data from elsewhere in users' hard disks, leading to fears that Prodigy was spying on its users, but it was apparently just a side effect of the disk block allocation routines which sometimes led to parts of deleted files being present until overwritten by other data, and this data was not transmitted to Prodigy. More recently, that file got back in the news after it was discovered that parts of the long-dead Prodigy content could be recovered from users' STAGE.DAT files, like flies preserved in amber, making the files of interest to historians and archivists.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&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;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&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;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;Researcher Jim Carpenter analyzed the file in 2014, determining that the file contained an entire filesystem of its own, which he discovered was in [[FAT12]] format. Other details of what was stored in the file could be discerned by reading Prodigy's patent on the associated technology, [http://www.google.com/patents/US5347632 US Patent 5,347,632]. For a change, this actually works the way the patent system was originally intended; the patent monopoly is granted in exchange for the inventor giving full disclosure of how it works (not keeping it a trade secret) so that others can build on it and will be able to have unrestricted use of the tehcniques once the patent expires. Unfortunately, this is often defeated in modern patents by the use of inscrutable legalese making it hard to find any coherent technical facts in the patent text. In this case, however, Prodigy's techniques are outlined in very specific detail.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&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;/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;/td&gt;&lt;/tr&gt;
&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;== Sample data ==&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;== Sample data ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Dan Tobias</name></author>	</entry>

	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=Prodigy&amp;diff=18188&amp;oldid=prev</id>
		<title>Dan Tobias at 01:30, 13 July 2014</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=Prodigy&amp;diff=18188&amp;oldid=prev"/>
				<updated>2014-07-13T01:30:08Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
			&lt;tr valign='top'&gt;
			&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 01:30, 13 July 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;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 4:&lt;/td&gt;&lt;/tr&gt;
&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;'''Prodigy''' was an online service mostly active in the early 1990s, formed originally by IBM and Sears as a consumer videotex service. The transmissions (with text and graphics) were primarily based on [[NAPLPS]], but had many proprietary elements, and required special Prodigy software to use. There were a number of active communities within the forums, including fan communities for various things (including teen pop crazes such as New Kids On The Block), but as the '90s wore on [[AOL]] got more popular and Prodigy faded out. In 1995 Prodigy was among the first consumer online services to make [[Web]] access available, using its own browser embedded in the Prodigy software, but ultimately the Internet eclipsed the service and Prodigy moved to a new &amp;quot;Prodigy Internet&amp;quot; service, keeping the old service around for a while as &amp;quot;Prodigy Classic&amp;quot; before finally killing it altogether in 1999.&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;'''Prodigy''' was an online service mostly active in the early 1990s, formed originally by IBM and Sears as a consumer videotex service. The transmissions (with text and graphics) were primarily based on [[NAPLPS]], but had many proprietary elements, and required special Prodigy software to use. There were a number of active communities within the forums, including fan communities for various things (including teen pop crazes such as New Kids On The Block), but as the '90s wore on [[AOL]] got more popular and Prodigy faded out. In 1995 Prodigy was among the first consumer online services to make [[Web]] access available, using its own browser embedded in the Prodigy software, but ultimately the Internet eclipsed the service and Prodigy moved to a new &amp;quot;Prodigy Internet&amp;quot; service, keeping the old service around for a while as &amp;quot;Prodigy Classic&amp;quot; before finally killing it altogether in 1999.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&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;/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;/td&gt;&lt;/tr&gt;
&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;A notable file-format-related issue was the service's storage of a file called &amp;quot;STAGE.DAT&amp;quot; on the user's hard disk (usually in a C:\PRODIGY\ directory), which cached various things from the service to improve access speed. This file proved controversial as it sometimes seemed to contain personal data from elsewhere in users' hard disks, leading to fears that Prodigy was spying on its users, but it was apparently just a side effect of the disk block allocation routines which sometimes led to parts of deleted files being present until overwritten by other data, and this data was not transmitted to Prodigy. More recently, that file got back in the news after it was discovered that parts of the long-dead Prodigy content could be recovered from users' STAGE.DAT files, like flies preserved in amber, making the files of interest to historians and archivists.&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;A notable file-format-related issue was the service's storage of a file called &amp;quot;STAGE.DAT&amp;quot; on the user's hard disk (usually in a C:\PRODIGY\ directory&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;, or C:\PRODIGYW\ for the Windows version&lt;/ins&gt;), which cached various things from the service to improve access speed. This file proved controversial as it sometimes seemed to contain personal data from elsewhere in users' hard disks, leading to fears that Prodigy was spying on its users, but it was apparently just a side effect of the disk block allocation routines which sometimes led to parts of deleted files being present until overwritten by other data, and this data was not transmitted to Prodigy. More recently, that file got back in the news after it was discovered that parts of the long-dead Prodigy content could be recovered from users' STAGE.DAT files, like flies preserved in amber, making the files of interest to historians and archivists.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&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;/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;/td&gt;&lt;/tr&gt;
&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;== Sample data ==&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;== Sample data ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Dan Tobias</name></author>	</entry>

	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=Prodigy&amp;diff=18187&amp;oldid=prev</id>
		<title>Dan Tobias at 01:18, 13 July 2014</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=Prodigy&amp;diff=18187&amp;oldid=prev"/>
				<updated>2014-07-13T01:18:12Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
			&lt;tr valign='top'&gt;
			&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 01:18, 13 July 2014&lt;/td&gt;
			&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 5:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 5:&lt;/td&gt;&lt;/tr&gt;
&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;/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;/td&gt;&lt;/tr&gt;
&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;A notable file-format-related issue was the service's storage of a file called &amp;quot;STAGE.DAT&amp;quot; on the user's hard disk (usually in a C:\PRODIGY\ directory), which cached various things from the service to improve access speed. This file proved controversial as it sometimes seemed to contain personal data from elsewhere in users' hard disks, leading to fears that Prodigy was spying on its users, but it was apparently just a side effect of the disk block allocation routines which sometimes led to parts of deleted files being present until overwritten by other data, and this data was not transmitted to Prodigy. More recently, that file got back in the news after it was discovered that parts of the long-dead Prodigy content could be recovered from users' STAGE.DAT files, like flies preserved in amber, making the files of interest to historians and archivists.&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;A notable file-format-related issue was the service's storage of a file called &amp;quot;STAGE.DAT&amp;quot; on the user's hard disk (usually in a C:\PRODIGY\ directory), which cached various things from the service to improve access speed. This file proved controversial as it sometimes seemed to contain personal data from elsewhere in users' hard disks, leading to fears that Prodigy was spying on its users, but it was apparently just a side effect of the disk block allocation routines which sometimes led to parts of deleted files being present until overwritten by other data, and this data was not transmitted to Prodigy. More recently, that file got back in the news after it was discovered that parts of the long-dead Prodigy content could be recovered from users' STAGE.DAT files, like flies preserved in amber, making the files of interest to historians and archivists.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&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;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&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;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;== Sample data ==&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&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;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;* [http://www.dan.info/sampledata/prodigy/1994/STAGE.DAT STAGE.DAT file from DOS Prodigy, 1994]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&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;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;* [http://www.dan.info/sampledata/prodigy/1995/STAGE.DAT STAGE.DAT file from Windows Prodigy, 1995]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&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;/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;/td&gt;&lt;/tr&gt;
&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;== Links ==&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;== Links ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Dan Tobias</name></author>	</entry>

	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=Prodigy&amp;diff=18186&amp;oldid=prev</id>
		<title>Dan Tobias at 22:38, 12 July 2014</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=Prodigy&amp;diff=18186&amp;oldid=prev"/>
				<updated>2014-07-12T22:38:31Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&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 22:38, 12 July 2014&lt;/td&gt;
			&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 12:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 12:&lt;/td&gt;&lt;/tr&gt;
&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;* [http://cyber.eserver.org/prodigy.txt Another version of this old warning text]&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;* [http://cyber.eserver.org/prodigy.txt Another version of this old warning text]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&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;* [http://www.vintagecomputing.com/index.php/archives/171 Recreation of a Prodigy online game]&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;* [http://www.vintagecomputing.com/index.php/archives/171 Recreation of a Prodigy online game]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&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;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&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;&lt;ins style=&quot;color: red; font-weight: bold; text-decoration: none;&quot;&gt;[[Category:IBM]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Dan Tobias</name></author>	</entry>

	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=Prodigy&amp;diff=18184&amp;oldid=prev</id>
		<title>Dan Tobias at 22:37, 12 July 2014</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=Prodigy&amp;diff=18184&amp;oldid=prev"/>
				<updated>2014-07-12T22:37:37Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&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 22:37, 12 July 2014&lt;/td&gt;
			&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 2:&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;|subcat=E-Mail, newsgroups, and forums&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;|subcat=E-Mail, newsgroups, and forums&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&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;}}&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;}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&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;'''Prodigy''' was an online service mostly active in the early 1990s, formed originally by IBM and Sears as a consumer videotex service. The transmissions (with text and graphics) were primarily based on [[&lt;del class=&quot;diffchange diffchange-inline&quot;&gt;NAPLS&lt;/del&gt;]], but had many proprietary elements, and required special Prodigy software to use. There were a number of active communities within the forums, including fan communities for various things (including teen pop crazes such as New Kids On The Block), but as the '90s wore on [[AOL]] got more popular and Prodigy faded out. In 1995 Prodigy was among the first consumer online services to make [[Web]] access available, using its own browser embedded in the Prodigy software, but ultimately the Internet eclipsed the service and Prodigy moved to a new &amp;quot;Prodigy Internet&amp;quot; service, keeping the old service around for a while as &amp;quot;Prodigy Classic&amp;quot; before finally killing it altogether in 1999.&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;'''Prodigy''' was an online service mostly active in the early 1990s, formed originally by IBM and Sears as a consumer videotex service. The transmissions (with text and graphics) were primarily based on [[&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;NAPLPS&lt;/ins&gt;]], but had many proprietary elements, and required special Prodigy software to use. There were a number of active communities within the forums, including fan communities for various things (including teen pop crazes such as New Kids On The Block), but as the '90s wore on [[AOL]] got more popular and Prodigy faded out. In 1995 Prodigy was among the first consumer online services to make [[Web]] access available, using its own browser embedded in the Prodigy software, but ultimately the Internet eclipsed the service and Prodigy moved to a new &amp;quot;Prodigy Internet&amp;quot; service, keeping the old service around for a while as &amp;quot;Prodigy Classic&amp;quot; before finally killing it altogether in 1999.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&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;/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;/td&gt;&lt;/tr&gt;
&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;A notable file-format-related issue was the service's storage of a file called &amp;quot;STAGE.DAT&amp;quot; on the user's hard disk (usually in a C:\PRODIGY\ directory), which cached various things from the service to improve access speed. This file proved controversial as it sometimes seemed to contain personal data from elsewhere in users' hard disks, leading to fears that Prodigy was spying on its users, but it was apparently just a side effect of the disk block allocation routines which sometimes led to parts of deleted files being present until overwritten by other data, and this data was not transmitted to Prodigy. More recently, that file got back in the news after it was discovered that parts of the long-dead Prodigy content could be recovered from users' STAGE.DAT files, like flies preserved in amber, making the files of interest to historians and archivists.&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;A notable file-format-related issue was the service's storage of a file called &amp;quot;STAGE.DAT&amp;quot; on the user's hard disk (usually in a C:\PRODIGY\ directory), which cached various things from the service to improve access speed. This file proved controversial as it sometimes seemed to contain personal data from elsewhere in users' hard disks, leading to fears that Prodigy was spying on its users, but it was apparently just a side effect of the disk block allocation routines which sometimes led to parts of deleted files being present until overwritten by other data, and this data was not transmitted to Prodigy. More recently, that file got back in the news after it was discovered that parts of the long-dead Prodigy content could be recovered from users' STAGE.DAT files, like flies preserved in amber, making the files of interest to historians and archivists.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Dan Tobias</name></author>	</entry>

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