PC-DOS 2.88M format - Revision history

Jsummers at 18:39, 1 June 2022

2022-06-01T18:39:07Z

Dan Tobias at 20:59, 17 September 2014

2014-09-17T20:59:44Z

Dan Tobias: Created page with "{{FormatInfo |formattype=physical |subcat=Floppy disk }} The '''PC-DOS 2.88M format''' (3 1/2", double sided, extended density) was the highest-capacity floppy disk format to..."

2013-05-11T23:53:37Z

Created page with "{{FormatInfo |formattype=physical |subcat=Floppy disk }} The '''PC-DOS 2.88M format''' (3 1/2", double sided, extended density) was the highest-capacity floppy disk format to..."

New page

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

The '''PC-DOS 2.88M format''' (3 1/2", double sided, extended density) was the highest-capacity floppy disk format to be used on a PC platform. It had 80 tracks per side, with 36 sectors per track, and 512 bytes per sector. Data was stored with [[MFM encoding]], and generally used the [[FAT12]] file system. The disk turned at 300 RPM. The capacity was twice that of the [[PC-DOS 1.44M format]], but special extended-density disks were needed, which were never manufactured in the quantities of other formats since this format didn't catch on. Introduced on high-end IBM PS/2 models, these disks (along with the computers they ran on) failed to gain a foothold in the market.

This format is distinct from other formats also labeled "extended density" by IBM which can get up to 1.86 MB of data on a standard high-density floppy disk (see [[Wikipedia:IBM Extended Density Format|Wikipedia article]]).

3 1/2" disks are actually 90 mm wide, but are almost universally referred to as "3 1/2 inch" disks even in countries that use the metric system.

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

@@ Line 5: / Line 5: @@
 The '''PC-DOS 2.88M format''' (3 1/2", double sided, extended density) was the highest-capacity floppy disk format to be used on a PC platform. It had 80 tracks per side, with 36 sectors per track, and 512 bytes per sector. Data was stored with [[MFM encoding]], and generally used the [[FAT12]] file system. The disk turned at 300 RPM. The capacity was twice that of the [[PC-DOS 1.44M format]], but special extended-density disks were needed, which were never manufactured in the quantities of other formats since this format didn't catch on. Introduced on high-end IBM PS/2 models, these disks (along with the computers they ran on) failed to gain a foothold in the market.
-This format is distinct from other formats also labeled "extended density" by IBM which can get up to 1.86 MB of data on a standard high-density floppy disk (see [[Wikipedia:IBM Extended Density Format|Wikipedia article]]).
+This format is distinct from other formats also labeled [[XDF (Extended Density Format)|"extended density" by IBM]] which can get up to 1.86 MB of data on a standard high-density floppy disk.
 1/2" disks are actually 90 mm wide, but are almost universally referred to as "3 1/2 inch" disks even in countries that use the metric system.

@@ Line 3: / Line 3: @@
 |subcat=Floppy disk
 }}
 The '''PC-DOS 2.88M format''' (3 1/2", double sided, extended density) was the highest-capacity floppy disk format to be used on a PC platform. It had 80 tracks per side, with 36 sectors per track, and 512 bytes per sector. Data was stored with [[MFM encoding]], and generally used the [[FAT12]] file system. The disk turned at 300 RPM. The capacity was twice that of the [[PC-DOS 1.44M format]], but special extended-density disks were needed, which were never manufactured in the quantities of other formats since this format didn't catch on. Introduced on high-end IBM PS/2 models, these disks (along with the computers they ran on) failed to gain a foothold in the market.