PC-DOS 320K format - Revision history

SJK at 10:29, 5 September 2024

2024-09-05T10:29:37Z

Dan Tobias at 23:34, 27 March 2014

2014-03-27T23:34:19Z

Dan Tobias at 03:34, 4 October 2013

2013-10-04T03:34:17Z

Dan Tobias: Created page with "{{FormatInfo |formattype=physical |subcat=Floppy disk }} The '''PC-DOS 320K format''' was one of several low-capacity 5 1/4" disk formats used on IBM PCs and compatibles in t..."

2013-05-12T00:12:59Z

Created page with "{{FormatInfo |formattype=physical |subcat=Floppy disk }} The '''PC-DOS 320K format''' was one of several low-capacity 5 1/4" disk formats used on IBM PCs and compatibles in t..."

New page

{{FormatInfo
|formattype=physical
|subcat=Floppy disk
}}

The '''PC-DOS 320K format''' was one of several low-capacity 5 1/4" disk formats used on IBM PCs and compatibles in the early days of PC-DOS before the [[PC-DOS 360K format]] became the standard. It used a double-sided, double-density disk with 40 tracks per side with 8 sectors per track, and 512 bytes per sector. Data was stored with [[MFM encoding]]. The disk turned at 300 RPM. These disks were generally used with [[FAT12]] file systems under the MS-DOS or PC-DOS operating system.

This format was the double-sided counterpart of the [[PC-DOS 160K format]], but was soon superseded by the 360K format made possible by expanding the number of sectors per track to 9.

[[Category:IBM]]
[[Category:Microsoft]]

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 == Links ==
 * [http://www.textfiles.com/programming/FORMATS/formats.pro Info on MS-DOS 1.x - 2.x disk formats]
 [[Category:IBM]]
 [[Category:Microsoft]]

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 }}
-The '''PC-DOS 320K format''' was one of several low-capacity 5 1/4" disk formats used on IBM PCs and compatibles in the early days of PC-DOS before the [[PC-DOS 360K format]] became the standard. It used a double-sided, double-density disk with 40 tracks per side with 8 sectors per track, and 512 bytes per sector. Data was stored with [[MFM encoding]]. The disk turned at 300 RPM. These disks were generally used with [[FAT12]] file systems under the MS-DOS or PC-DOS operating system.
+The '''PC-DOS 320K format''' was one of several low-capacity 5 1/4" disk formats used on IBM PCs and compatibles in the early days of PC-DOS before the [[PC-DOS 360K format]] became the standard. It used a double-sided, double-density disk with 40 tracks per side with 8 sectors per track, and 512 bytes per sector. The disk turned at 300 RPM. These disks were generally used with [[FAT12]] file systems under the MS-DOS or PC-DOS operating system, 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).
 This format was the double-sided counterpart of the [[PC-DOS 160K format]], but was soon superseded by the 360K format made possible by expanding the number of sectors per track to 9.