4 ms·
Pedantically, the PC DOS 3 1/2" HD format is 1440 * 1024 bytes[1], so either 1.47456 MB (SI) or 1.40625 MiB (IEC), though "1.44 MB" was the official IBM designa
by jasomill 3y ago
Pedantically, the PC DOS 3 1/2" HD format is 1440 * 1024 bytes[1], so either 1.47456 MB (SI) or 1.40625 MiB (IEC), though "1.44 MB" was the official IBM designation for the format.
[1] 2 sides / disk * 18 tracks / side * 80 sectors / track * 512 bytes / sector = 1,474,560 bytes = 1440 * 1024 bytes
- u801e 3y agoI remember the free space on a 1.44 MB freshly formatted floppy disc under DOS 5.0 was 1,457,664 bytes. I guess the file system metadata used up 16,896 bytes.