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/* IBM format */
The IBM format is only usable on the earliest IBM PCs as it uses 8 sectors per track and the CP/M filesystem. This was the format used in MS-DOS 1.x. [https://www.os2museum.com/wp/dos/dos-1-0-and-1-1/ Source]
With MS-DOS 2.0 in (1983), PC floppies switched to 9 sectors per track and the FAT12 filesystem. [https://minuszerodegrees.net/5150/early/5150_early.htm Source] And MS-DOS 4.0 (1988) removed compatibility with MS-DOS 1.x formatted floppies. This is one of the reasons why MS-DOS 4.0 faced significant criticism.
Also, [[CP/M|CP/M]] 2.2 supports the IBM format but CP/M Plus does not.
