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Warning: Cannot modify header information - headers already sent by (output started at /usr/local/www/mediawiki/includes/WebStart.php:94) in /usr/local/www/mediawiki/includes/WebResponse.php on line 38 http://fileformats.archiveteam.org/index.php?action=history&feed=atom&title=PC-DOS_360K_formatPC-DOS 360K format - Revision history2024-12-27T19:38:13ZRevision history for this page on the wikiMediaWiki 1.19.2 Warning: require(): Unable to allocate memory for pool. in /usr/local/www/mediawiki/includes/AutoLoader.php on line 1007
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Warning: require_once(): Unable to allocate memory for pool. in /usr/local/www/mediawiki/includes/normal/UtfNormal.php on line 193 http://fileformats.archiveteam.org/index.php?title=PC-DOS_360K_format&diff=49303&oldid=prevSJK at 10:30, 5 September 20242024-09-05T10:30:14Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>|wikidata={{wikidata|Q29167905}}</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>|wikidata={{wikidata|Q29167905}}</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>}}</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>}}</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>The '''PC-DOS 360K format''' was a very common floppy disk format in the 1980s, used on IBM PCs and compatibles. It replaced earlier [[PC-DOS 160K format|160K]], [[PC-DOS 180K format|180K]], and [[PC-DOS 320K format|320K]] formats using either fewer sectors, single-sided disks, or both, with a new format getting the most out of a double-sided, double-density 5 1/4" floppy disk. It had 40 tracks per side, with 9 sectors per track, and 512 bytes per sector<del class="diffchange diffchange-inline">. Data was stored with [[MFM encoding]]</del>. The disk turned at 300 RPM.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>The '''PC-DOS 360K format''' was a very common floppy disk format in the 1980s, used on IBM PCs and compatibles. It replaced earlier [[PC-DOS 160K format|160K]], [[PC-DOS 180K format|180K]], and [[PC-DOS 320K format|320K]] formats using either fewer sectors, single-sided disks, or both, with a new format getting the most out of a double-sided, double-density 5 1/4" floppy disk. It had 40 tracks per side, with 9 sectors per track, and 512 bytes per sector. The disk turned at 300 RPM.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>These disks were generally used with [[FAT12]] file systems under the MS-DOS or PC-DOS operating system.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>These disks were generally used with [[FAT12]] file systems under the MS-DOS or PC-DOS operating system<ins class="diffchange diffchange-inline">, but (far more rarely) were used with other filesystems too (e.g CP/M-86). The sector headers, etc, were based on [[IBM 3740]] format, albeit with [[MFM encoding]] (double density) replacing the original [[FM encoding]] (single density)</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>After being a commonplace format for most of the 1980s, this format declined in favor of the high-density [[PC-DOS 1.2M format]] and the 3 1/2" [[PC-DOS 720K format]] and [[PC-DOS 1.44M format]]. (There were compatibility issues in reading 360K disks on low-density drives after they were written to with a high-density drive, even though the writing is done in an emulation of the old format, due to the different drive head on the newer drives. The high-density drive heads were smaller, and the data written by them might not be picked up correctly by the larger low-density heads, particularly if the new data was overwriting data stored earlier using large-headed drives, which might not be completely overwritten.)</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>After being a commonplace format for most of the 1980s, this format declined in favor of the high-density [[PC-DOS 1.2M format]] and the 3 1/2" [[PC-DOS 720K format]] and [[PC-DOS 1.44M format]]. (There were compatibility issues in reading 360K disks on low-density drives after they were written to with a high-density drive, even though the writing is done in an emulation of the old format, due to the different drive head on the newer drives. The high-density drive heads were smaller, and the data written by them might not be picked up correctly by the larger low-density heads, particularly if the new data was overwriting data stored earlier using large-headed drives, which might not be completely overwritten.)</div></td></tr>
</table>SJKhttp://fileformats.archiveteam.org/index.php?title=PC-DOS_360K_format&diff=33336&oldid=prevDan Tobias at 20:47, 8 September 20192019-09-08T20:47:29Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>|subcat=Floppy disk</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>|subcat=Floppy disk</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">|wikidata={{wikidata|Q29167905}}</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>}}</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>}}</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>The '''PC-DOS 360K format''' was a very common floppy disk format in the 1980s, used on IBM PCs and compatibles. It replaced earlier [[PC-DOS 160K format|160K]], [[PC-DOS 180K format|180K]], and [[PC-DOS 320K format|320K]] formats using either fewer sectors, single-sided disks, or both, with a new format getting the most out of a double-sided, double-density 5 1/4" floppy disk. It had 40 tracks per side, with 9 sectors per track, and 512 bytes per sector. Data was stored with [[MFM encoding]]. The disk turned at 300 RPM.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>The '''PC-DOS 360K format''' was a very common floppy disk format in the 1980s, used on IBM PCs and compatibles. It replaced earlier [[PC-DOS 160K format|160K]], [[PC-DOS 180K format|180K]], and [[PC-DOS 320K format|320K]] formats using either fewer sectors, single-sided disks, or both, with a new format getting the most out of a double-sided, double-density 5 1/4" floppy disk. It had 40 tracks per side, with 9 sectors per track, and 512 bytes per sector. Data was stored with [[MFM encoding]]. The disk turned at 300 RPM.</div></td></tr>
</table>Dan Tobiashttp://fileformats.archiveteam.org/index.php?title=PC-DOS_360K_format&diff=27480&oldid=prevJsummers: Category:MS-DOS2017-03-29T16:29:58Z<p>Category:MS-DOS</p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:IBM]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:IBM]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Microsoft]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Microsoft]]</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">[[Category:MS-DOS]]</ins></div></td></tr>
</table>Jsummershttp://fileformats.archiveteam.org/index.php?title=PC-DOS_360K_format&diff=16756&oldid=prevDan Tobias at 23:34, 27 March 20142014-03-27T23:34:28Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [http://www.textfiles.com/programming/FORMATS/formats.pro Info on MS-DOS 1.x - 2.x disk formats]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [http://www.textfiles.com/programming/FORMATS/formats.pro Info on MS-DOS 1.x - 2.x disk formats]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [http://67.185.176.54:8080/diskette_handling.html Working with old diskettes]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [http://67.185.176.54:8080/diskette_handling.html Working with old diskettes]</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* [http://www.computerhistory.org/_static/atchm/microsoft-ms-dos-early-source-code/ Early PC-DOS source code]</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:IBM]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:IBM]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Microsoft]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Microsoft]]</div></td></tr>
</table>Dan Tobiashttp://fileformats.archiveteam.org/index.php?title=PC-DOS_360K_format&diff=16608&oldid=prevDan Tobias: /* Links */2014-03-11T22:04:24Z<p><span dir="auto"><span class="autocomment">Links</span></span></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Links ==</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>== Links ==</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [http://www.textfiles.com/programming/FORMATS/formats.pro Info on MS-DOS 1.x - 2.x disk formats]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>* [http://www.textfiles.com/programming/FORMATS/formats.pro Info on MS-DOS 1.x - 2.x disk formats]</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* [http://67.185.176.54:8080/diskette_handling.html Working with old diskettes]</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:IBM]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:IBM]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Microsoft]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Microsoft]]</div></td></tr>
</table>Dan Tobiashttp://fileformats.archiveteam.org/index.php?title=PC-DOS_360K_format&diff=16206&oldid=prevDan Tobias at 09:08, 15 February 20142014-02-15T09:08:51Z<p></p>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>|subcat=Floppy disk</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>|subcat=Floppy disk</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>}}</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>}}</div></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;"></del></div></td><td colspan="2"> </td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>The '''PC-DOS 360K format''' was a very common floppy disk format in the 1980s, used on IBM PCs and compatibles. It replaced earlier [[PC-DOS 160K format|160K]], [[PC-DOS 180K format|180K]], and [[PC-DOS 320K format|320K]] formats using either fewer sectors, single-sided disks, or both, with a new format getting the most out of a double-sided, double-density 5 1/4" floppy disk. It had 40 tracks per side, with 9 sectors per track, and 512 bytes per sector. Data was stored with [[MFM encoding]]. The disk turned at 300 RPM.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>The '''PC-DOS 360K format''' was a very common floppy disk format in the 1980s, used on IBM PCs and compatibles. It replaced earlier [[PC-DOS 160K format|160K]], [[PC-DOS 180K format|180K]], and [[PC-DOS 320K format|320K]] formats using either fewer sectors, single-sided disks, or both, with a new format getting the most out of a double-sided, double-density 5 1/4" floppy disk. It had 40 tracks per side, with 9 sectors per track, and 512 bytes per sector. Data was stored with [[MFM encoding]]. The disk turned at 300 RPM.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
</table>Dan Tobiashttp://fileformats.archiveteam.org/index.php?title=PC-DOS_360K_format&diff=13725&oldid=prevDan Tobias at 03:34, 4 October 20132013-10-04T03:34:33Z<p></p>
<table class='diff diff-contentalign-left'>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 03:34, 4 October 2013</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>In the late '80s and early '90s, it was common for desktop PCs to have both 5 1/4" and 3 1/2" disk drives in order to be compatible with all software and data, which might be distributed on either format. Often the 5 1/4" drive was drive A, and the 3 1/2" one was drive B. Later PCs, however, were more likely to have only a 3 1/2" drive, set up to respond to both drive letters. Eventually, PCs stopped having floppy disk drives altogether as other data storage and transfer media took over.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>In the late '80s and early '90s, it was common for desktop PCs to have both 5 1/4" and 3 1/2" disk drives in order to be compatible with all software and data, which might be distributed on either format. Often the 5 1/4" drive was drive A, and the 3 1/2" one was drive B. Later PCs, however, were more likely to have only a 3 1/2" drive, set up to respond to both drive letters. Eventually, PCs stopped having floppy disk drives altogether as other data storage and transfer media took over.</div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">== Links ==</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">* [http://www.textfiles.com/programming/FORMATS/formats.pro Info on MS-DOS 1.x - 2.x disk formats]</ins></div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:IBM]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:IBM]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Microsoft]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Microsoft]]</div></td></tr>
</table>Dan Tobiashttp://fileformats.archiveteam.org/index.php?title=PC-DOS_360K_format&diff=11481&oldid=prevDan Tobias at 00:00, 10 May 20132013-05-10T00:00:07Z<p></p>
<table class='diff diff-contentalign-left'>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 00:00, 10 May 2013</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>These disks were generally used with [[FAT12]] file systems under the MS-DOS or PC-DOS operating system.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>These disks were generally used with [[FAT12]] file systems under the MS-DOS or PC-DOS operating system.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>After being a commonplace format for most of the 1980s, this format declined in favor of the high-density [[PC-DOS 1.2M format]] and the 3 1/2" [[PC-DOS 720K format]] and [[PC-DOS 1.44M format]]. (There <del class="diffchange diffchange-inline">can be </del>compatibility issues in reading 360K disks on low-density drives after they were written to with a high-density drive, even though the writing is done in an emulation of the old format, due to the different drive head on the newer drives.)</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>After being a commonplace format for most of the 1980s, this format declined in favor of the high-density [[PC-DOS 1.2M format]] and the 3 1/2" [[PC-DOS 720K format]] and [[PC-DOS 1.44M format]]. (There <ins class="diffchange diffchange-inline">were </ins>compatibility issues in reading 360K disks on low-density drives after they were written to with a high-density drive, even though the writing is done in an emulation of the old format, due to the different drive head on the newer drives<ins class="diffchange diffchange-inline">. The high-density drive heads were smaller, and the data written by them might not be picked up correctly by the larger low-density heads, particularly if the new data was overwriting data stored earlier using large-headed drives, which might not be completely overwritten</ins>.)</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>In the late '80s and early '90s, it was common for desktop PCs to have both 5 1/4" and 3 1/2" disk drives in order to be compatible with all software and data, which might be distributed on either format. Often the 5 1/4" drive was drive A, and the 3 1/2" one was drive B. Later PCs, however, were more likely to have only a 3 1/2" drive, set up to respond to both drive letters. Eventually, PCs stopped having floppy disk drives altogether as other data storage and transfer media took over.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>In the late '80s and early '90s, it was common for desktop PCs to have both 5 1/4" and 3 1/2" disk drives in order to be compatible with all software and data, which might be distributed on either format. Often the 5 1/4" drive was drive A, and the 3 1/2" one was drive B. Later PCs, however, were more likely to have only a 3 1/2" drive, set up to respond to both drive letters. Eventually, PCs stopped having floppy disk drives altogether as other data storage and transfer media took over.</div></td></tr>
</table>Dan Tobiashttp://fileformats.archiveteam.org/index.php?title=PC-DOS_360K_format&diff=11431&oldid=prevDan Tobias at 03:36, 7 May 20132013-05-07T03:36:29Z<p></p>
<table class='diff diff-contentalign-left'>
<col class='diff-marker' />
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<td colspan='2' style="background-color: white; color:black;">Revision as of 03:36, 7 May 2013</td>
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<td colspan="2" class="diff-lineno">Line 8:</td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>These disks were generally used with [[FAT12]] file systems under the MS-DOS or PC-DOS operating system.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>These disks were generally used with [[FAT12]] file systems under the MS-DOS or PC-DOS operating system.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>After being a commonplace format for most of the 1980s, this format declined in favor of the high-density [[PC-DOS 1.2M format]] and the 3 1/2" [[PC-DOS 720K format]] and [[PC-DOS 1.44M format]].</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>After being a commonplace format for most of the 1980s, this format declined in favor of the high-density [[PC-DOS 1.2M format]] and the 3 1/2" [[PC-DOS 720K format]] and [[PC-DOS 1.44M format]]<ins class="diffchange diffchange-inline">. (There can be compatibility issues in reading 360K disks on low-density drives after they were written to with a high-density drive, even though the writing is done in an emulation of the old format, due to the different drive head on the newer drives.)</ins></div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div> </div></td></tr>
<tr><td colspan="2"> </td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">In the late '80s and early '90s, it was common for desktop PCs to have both 5 1/4" and 3 1/2" disk drives in order to be compatible with all software and data, which might be distributed on either format. Often the 5 1/4" drive was drive A, and the 3 1/2" one was drive B. Later PCs, however, were more likely to have only a 3 1/2" drive, set up to respond to both drive letters. Eventually, PCs stopped having floppy disk drives altogether as other data storage and transfer media took over</ins>.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:IBM]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:IBM]]</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Microsoft]]</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Microsoft]]</div></td></tr>
</table>Dan Tobiashttp://fileformats.archiveteam.org/index.php?title=PC-DOS_360K_format&diff=11422&oldid=prevDan Tobias at 03:03, 6 May 20132013-05-06T03:03:40Z<p></p>
<table class='diff diff-contentalign-left'>
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<td colspan='2' style="background-color: white; color:black;">Revision as of 03:03, 6 May 2013</td>
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<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>}}</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>}}</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>The '''PC-DOS 360K format''' <del class="diffchange diffchange-inline">(or MS-DOS) </del>was a very common floppy disk format in the 1980s, used on IBM PCs and compatibles. It replaced earlier [[PC-DOS 160K format|160K]], [[PC-DOS 180K format|180K]], and [[PC-DOS 320K format|320K]] formats using either fewer sectors, single-sided disks, or both, with a new format getting the most out of a double-sided, double-density 5 1/4" floppy disk. It had 40 tracks per side, with 9 sectors per track, and 512 bytes per sector. Data was stored with [[MFM encoding]]. The disk turned at 300 RPM.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>The '''PC-DOS 360K format''' was a very common floppy disk format in the 1980s, used on IBM PCs and compatibles. It replaced earlier [[PC-DOS 160K format|160K]], [[PC-DOS 180K format|180K]], and [[PC-DOS 320K format|320K]] formats using either fewer sectors, single-sided disks, or both, with a new format getting the most out of a double-sided, double-density 5 1/4" floppy disk. It had 40 tracks per side, with 9 sectors per track, and 512 bytes per sector. Data was stored with [[MFM encoding]]. The disk turned at 300 RPM.</div></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"></td></tr>
<tr><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>These disks were generally used with [[FAT12]] file systems under the MS-DOS or PC-DOS operating system.</div></td><td class='diff-marker'> </td><td style="background: #eee; color:black; font-size: smaller;"><div>These disks were generally used with [[FAT12]] file systems under the MS-DOS or PC-DOS operating system.</div></td></tr>
</table>Dan Tobias