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		<id>http://fileformats.archiveteam.org/index.php?action=history&amp;feed=atom&amp;title=ZX_Spectrum_Beta_Disc_3.5%22_floppy</id>
		<title>ZX Spectrum Beta Disc 3.5&quot; floppy - Revision history</title>
		<link rel="self" type="application/atom+xml" href="http://fileformats.archiveteam.org/index.php?action=history&amp;feed=atom&amp;title=ZX_Spectrum_Beta_Disc_3.5%22_floppy"/>
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		<updated>2026-04-18T10:25:11Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
		<generator>MediaWiki 1.19.2</generator>

	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=ZX_Spectrum_Beta_Disc_3.5%22_floppy&amp;diff=33390&amp;oldid=prev</id>
		<title>Dan Tobias at 02:25, 13 September 2019</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=ZX_Spectrum_Beta_Disc_3.5%22_floppy&amp;diff=33390&amp;oldid=prev"/>
				<updated>2019-09-13T02:25:12Z</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 02:25, 13 September 2019&lt;/td&gt;
			&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 43:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 43:&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;* [https://web.archive.org/web/20140409113112/http://k1.dyndns.org/Vintage/Sinclair/82/Peripherials/Disc%20Interfaces/Beta%20128%20Disc%20Interface%2C%20TRDOS%20%28Technology%20Research%29/TRDOS/TR-DOS%20Programming.txt Internal TR-DOS functions]&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;* [https://web.archive.org/web/20140409113112/http://k1.dyndns.org/Vintage/Sinclair/82/Peripherials/Disc%20Interfaces/Beta%20128%20Disc%20Interface%2C%20TRDOS%20%28Technology%20Research%29/TRDOS/TR-DOS%20Programming.txt Internal TR-DOS functions]&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;* [https://www.worldofspectrum.org/hardware/feat28.html Ad/review for disk drive]&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;[[Category:ZX Spectrum]]&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:ZX Spectrum]]&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=ZX_Spectrum_Beta_Disc_3.5%22_floppy&amp;diff=33388&amp;oldid=prev</id>
		<title>Dan Tobias at 02:22, 13 September 2019</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=ZX_Spectrum_Beta_Disc_3.5%22_floppy&amp;diff=33388&amp;oldid=prev"/>
				<updated>2019-09-13T02:22:38Z</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 02:22, 13 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 '''ZX Spectrum Beta Disc 3.5&amp;quot; floppy''' is the 3 1/2&amp;quot; disk format used with ZX Spectrum computers.&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 '''ZX Spectrum Beta Disc 3.5&amp;quot; floppy''' is the 3 1/2&amp;quot; disk format used with ZX Spectrum computers&lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;, with the [[TR-DOS filesystem]]&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;5¼&amp;quot; and 3½&amp;quot; floppies are used with the following formats (sources are unclear as to which of these formats are used with each of the sizes):&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;5¼&amp;quot; and 3½&amp;quot; floppies are used with the following formats (sources are unclear as to which of these formats are used with each of the sizes):&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=ZX_Spectrum_Beta_Disc_3.5%22_floppy&amp;diff=33386&amp;oldid=prev</id>
		<title>Dan Tobias: Created page with &quot;{{FormatInfo |formattype=physical |subcat=Floppy disk }} The '''ZX Spectrum Beta Disc 3.5&quot; floppy''' is the 3 1/2&quot; disk format used with ZX Spectrum computers.  5¼&quot; and 3½&quot; ...&quot;</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=ZX_Spectrum_Beta_Disc_3.5%22_floppy&amp;diff=33386&amp;oldid=prev"/>
				<updated>2019-09-13T02:21:18Z</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;ZX Spectrum Beta Disc 3.5&amp;quot; floppy&amp;#039;&amp;#039;&amp;#039; is the 3 1/2&amp;quot; disk format used with ZX Spectrum computers.  5¼&amp;quot; and 3½&amp;quot; ...&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 '''ZX Spectrum Beta Disc 3.5&amp;quot; floppy''' is the 3 1/2&amp;quot; disk format used with ZX Spectrum computers.&lt;br /&gt;
&lt;br /&gt;
5¼&amp;quot; and 3½&amp;quot; floppies are used with the following formats (sources are unclear as to which of these formats are used with each of the sizes):&lt;br /&gt;
&lt;br /&gt;
{| class=&amp;quot;wikitable&amp;quot;&lt;br /&gt;
!Number of tracks per side&lt;br /&gt;
!Number of sides&lt;br /&gt;
!Number of tracks (total)&lt;br /&gt;
!Number of sectors&lt;br /&gt;
!Number of bytes&lt;br /&gt;
|-&lt;br /&gt;
|80&lt;br /&gt;
|2&lt;br /&gt;
|160&lt;br /&gt;
|2560&lt;br /&gt;
|655360&lt;br /&gt;
|-&lt;br /&gt;
|40&lt;br /&gt;
|2&lt;br /&gt;
|80&lt;br /&gt;
|1280&lt;br /&gt;
|327680&lt;br /&gt;
|-&lt;br /&gt;
|80&lt;br /&gt;
|1&lt;br /&gt;
|80&lt;br /&gt;
|1280&lt;br /&gt;
|327680&lt;br /&gt;
|-&lt;br /&gt;
|40&lt;br /&gt;
|1&lt;br /&gt;
|40&lt;br /&gt;
|640&lt;br /&gt;
|163840&lt;br /&gt;
|}&lt;br /&gt;
&lt;br /&gt;
Diskettes can be dumped to [[TRD]] files for use in emulators.&lt;br /&gt;
&lt;br /&gt;
== Links ==&lt;br /&gt;
* [https://web.archive.org/web/20140409113112/http://k1.dyndns.org/Vintage/Sinclair/82/Peripherials/Disc%20Interfaces/Beta%20128%20Disc%20Interface%2C%20TRDOS%20%28Technology%20Research%29/TRDOS/TR-DOS%20Programming.txt Internal TR-DOS functions]&lt;br /&gt;
&lt;br /&gt;
[[Category:ZX Spectrum]]&lt;/div&gt;</summary>
		<author><name>Dan Tobias</name></author>	</entry>

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