640 KiB (80 tps, 8 spt) DSDD 3.5″ floppyįor each of these three /F options, which of the two (or three, in 320’s case) possible formats is the option intended to produce? Does it change at all, depending on whether the drive holding the floppy disk to be formatted is a 5.25″ or a 3.5″ drive (distinguishing between DSDD, SSQD, and DSQD 5.25-inchers, on the one hand, and SSDD and DSDD 3.5-inchers, on the other), or maybe on whether the /1 switch (used to tell FORMAT to format only one side of the disk) is used (distinguishing, for 320 and 360, 5 between DSDD 5.25-inchers, on the one hand, and SSQD 5.25-inchers and SSDD 3.5-inchers, on the other)?ġ: The /F switch is technically still present in every Windows NT version from Windows XP right up through Windows 10, but has been neutered, with only the “1.44” (1440-KiB DSHD 3.5″ floppy) option available.640 KiB (80 tps, 8 spt) double-sided quad-density (DSQD) 5.25″ floppy, or.320 KiB (80 tps, 8 spt) single-sided quad-density (SSQD) 5.25″ floppy, or.However, for the remaining three, there are multiple floppy formats with a capacity that fits: 720: 720 KiB (80 tps, 9 spt) double-sided double-density (DSDD) 3.5″ floppy.160: 160 KiB (40 tracks per side, 8 sectors per track) single-sided double-density (SSDD) 5.25″ floppy.For example: 360, 720, 1.2, 1.44, 2.88.įor most of these options, even though the only thing specified is the (approximate) formatted capacity, 3 there is no ambiguity as to what size, density, and sideness of floppies they are for: F:xxxx Specifies the size to which the diskette is to be formatted. The OS/2 /F switch is the simplest of all: Windows 2000’s /F switch has considerably greater functionality: The description of the Windows NT 3.1–4.0 /F switch is (apart from a slight change in wording and the addition of support for 20385 KiB floptical disks) almost identical: In DOS 5+ and Windows 9x, the description of the /F switch (brought up, along with much other information, by entering format /? at the command prompt) is as follows: In MS-DOS 5.0 and newer, PC-DOS 5.0 and newer, Windows 9x, Windows NT 3.1–2000, and OS/2 4.x, the FORMAT command (present in some form or another in literally every single version of Q/86-/MS-/PC-DOS, Windows, and OS/2 ever) offers the /F switch for choosing what capacity to format a floppy disk to.
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