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File Allocation Table (FAT) is a file system developed for personal computers and was the default file system for the MS-DOS and Windows 9x operating systems. [citation needed] Originally developed in 1977 for use on floppy disks, it was adapted for use on hard disks and other devices.
The FAT file system is a file system used on MS-DOS and Windows 9x family of operating systems. [3] It continues to be used on mobile devices and embedded systems, and thus is a well-suited file system for data exchange between computers and devices of almost any type and age from 1981 through to the present.
VFAT, a variant of FAT with an extended directory format, was introduced in Windows 95 and Windows NT 3.5. It allowed mixed-case Unicode long filenames (LFNs) in addition to classic 8.3 names by using multiple 32-byte directory entry records for long filenames (in such a way that old 8.3 system software will only recognize one as the valid directory entry).
It also allows the installation of MS-DOS or FreeDOS onto a flash drive as well as the creation of Windows To Go bootable media. [10] It supports formatting flash drives using FAT, FAT32, NTFS, exFAT, UDF and ReFS filesystems. [11] Rufus can also be used to compute the MD5, SHA-1 and SHA-256 hashes of the currently selected image.
In computing, format is a command-line utility that carries out disk formatting. It is a component of various operating systems, including 86-DOS, MS-DOS, IBM PC DOS and OS/2, Microsoft Windows and ReactOS.
Originally MS-DOS was designed to be an operating system that could run on any computer with a 8086-family microprocessor.It competed with other operating systems written for such computers, such as CP/M-86 and UCSD Pascal.
RSX-11: ODS-1: 1974: CP/M: CP/M file system: 1980: 86-DOS: FAT12, but logically format incompatible with MS-DOS/PC DOS. 1981: PC DOS 1.0: FAT12: 1982: MS-DOS 1.25: FAT12: 1982: Commodore 64 / 1541: Commodore DOS (CBM DOS) 1984: PC DOS 3.0 / MS-DOS 3.0: FAT16: 1984: Classic Mac OS: Macintosh File System (MFS) 1985: Atari TOS: Modified FAT12 ...
MZ (DOS) DOS, OS/2, Windows (except for 64-bit editions), Concurrent DOS 286, FlexOS, Concurrent DOS 386, Multiuser DOS, System Manager, REAL/32, DOS Plus.EXE: No (x86 only) Yes Extension (Novell/Caldera VERSION etc.) No Extension Extension Extension No No MZ (GEM) GEM, ViewMAX.APP/.ACC: No (x86 only) Yes No No Unknown Unknown No No Un ...