Apple high-density 3 1/2" disk
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Dan Tobias (Talk | contribs) (Created page with "{{FormatInfo |formattype=physical |subcat=Floppy disk }} The '''Apple high-density 3 1/2" disk''' was used on the Macintosh (with the MFS or HFS file system) and the A...") |
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| − | The '''Apple high-density 3 1/2" disk''' was used on the Macintosh (with the [[MFS]] or [[HFS]] file system) and the Apple II line (with the [[ProDOS file system]], requiring ProDOS 8), as a higher-capacity format | + | The '''Apple high-density 3 1/2" disk''' was used on the Macintosh (with the [[MFS]] or [[HFS]] file system) and the Apple II line (with the [[ProDOS file system]], requiring ProDOS 8), as a higher-capacity format than the previous [[Apple double-density 3 1/2" disk]]. It was a disk format with 80 tracks per side and 18 sectors per track, with each sector storing 512 bytes. Disks were double sided, for a total capacity of 1440 KB. Data was encoded using [[MFM encoding]]. |
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. | 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. | ||
Latest revision as of 20:52, 15 September 2019
The Apple high-density 3 1/2" disk was used on the Macintosh (with the MFS or HFS file system) and the Apple II line (with the ProDOS file system, requiring ProDOS 8), as a higher-capacity format than the previous Apple double-density 3 1/2" disk. It was a disk format with 80 tracks per side and 18 sectors per track, with each sector storing 512 bytes. Disks were double sided, for a total capacity of 1440 KB. Data was encoded using MFM encoding.
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.
