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		<id>http://fileformats.archiveteam.org/index.php?action=history&amp;feed=atom&amp;title=TI-99%2F4A_180K</id>
		<title>TI-99/4A 180K - Revision history</title>
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		<updated>2026-05-03T22:25:45Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=TI-99/4A_180K&amp;diff=33360&amp;oldid=prev</id>
		<title>Dan Tobias at 13:26, 10 September 2019</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=TI-99/4A_180K&amp;diff=33360&amp;oldid=prev"/>
				<updated>2019-09-10T13:26:23Z</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 13:26, 10 September 2019&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;|subcat=Floppy disk&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=Floppy disk&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;The '''TI-99/4A 180K''' format is a 5 1/4&amp;quot; &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;single&lt;/del&gt;-sided, &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;double&lt;/del&gt;-density floppy disk format used with Texas Instruments personal computers. Disks had 40 tracks (apparently a variant with 35 tracks also existed) and &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;18 &lt;/del&gt;sectors per track of 256 bytes each (apparently there could be variants with different numbers of sectors and different block sizes). The [[TI-99/4A file system‎]] was used.&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;The '''TI-99/4A 180K''' format is a 5 1/4&amp;quot; &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;double&lt;/ins&gt;-sided, &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;single&lt;/ins&gt;-density floppy disk format &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;(though, if there were a single-sided, double-density format that would also have the same size) &lt;/ins&gt;used with Texas Instruments personal computers. Disks had 40 tracks &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;per side &lt;/ins&gt;(apparently a variant with 35 tracks also existed) and &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;9 &lt;/ins&gt;sectors per track of 256 bytes each (apparently there could be variants with different numbers of sectors and different block sizes). The [[TI-99/4A file system‎]] was used.&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;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.unige.ch/medecine/nouspikel/ti99/disks.htm Info on TI disk formats]&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.unige.ch/medecine/nouspikel/ti99/disks.htm Info on TI disk formats]&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=TI-99/4A_180K&amp;diff=33358&amp;oldid=prev</id>
		<title>Dan Tobias: Created page with &quot;{{FormatInfo |formattype=physical |subcat=Floppy disk }} The '''TI-99/4A 180K''' format is a 5 1/4&quot; single-sided, double-density floppy disk format used with Texas Instruments...&quot;</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=TI-99/4A_180K&amp;diff=33358&amp;oldid=prev"/>
				<updated>2019-09-10T13:22:52Z</updated>
		
		<summary type="html">&lt;p&gt;Created page with &amp;quot;{{FormatInfo |formattype=physical |subcat=Floppy disk }} The &amp;#039;&amp;#039;&amp;#039;TI-99/4A 180K&amp;#039;&amp;#039;&amp;#039; format is a 5 1/4&amp;quot; single-sided, double-density floppy disk format used with Texas Instruments...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{FormatInfo&lt;br /&gt;
|formattype=physical&lt;br /&gt;
|subcat=Floppy disk&lt;br /&gt;
}}&lt;br /&gt;
The '''TI-99/4A 180K''' format is a 5 1/4&amp;quot; single-sided, double-density floppy disk format used with Texas Instruments personal computers. Disks had 40 tracks (apparently a variant with 35 tracks also existed) and 18 sectors per track of 256 bytes each (apparently there could be variants with different numbers of sectors and different block sizes). The [[TI-99/4A file system‎]] was used.&lt;br /&gt;
&lt;br /&gt;
== Links ==&lt;br /&gt;
* [http://www.unige.ch/medecine/nouspikel/ti99/disks.htm Info on TI disk formats]&lt;/div&gt;</summary>
		<author><name>Dan Tobias</name></author>	</entry>

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