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The file system uses an index table stored on the device to identify chains of data storage areas associated with a file, the File Allocation Table (FAT). The FAT is statically allocated at the time of formatting. The table is a linked list of entries for each cluster, a contiguous area of disk storage. Each entry contains either the number of ...
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.
The Transaction-Safe FAT File System (TFAT) of the TFAT12, TFAT16 and TFAT32 file systems is a driver layer modification to the original FAT file systems FAT12, FAT16 and FAT32 maintaining two copies (FAT 0 and FAT 1) of the file allocation table instead of two identical ones. While performing a drive operation, changes would be made to FAT 1.
All of the Linux filesystem drivers support all three FAT types, namely FAT12, FAT16 and FAT32.Where they differ is in the provision of support for long filenames, beyond the 8.3 filename structure of the original FAT filesystem format, and in the provision of Unix file semantics that do not exist as standard in the FAT filesystem format such as file permissions. [1]
File Allocation Table From an alternative name : This is a redirect from a title that is another name or identity such as an alter ego, a nickname, or a synonym of the target, or of a name associated with the target.
The standard exFAT implementation is not journaled and only uses a single file allocation table and free-space map. FAT file systems instead used alternating tables, as this allowed recovery of the file system if the media was ejected during a write (which occurs frequently in practice with removable media).
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FatFs is a lightweight software library for microcontrollers and embedded systems that implements FAT / exFAT file system support. [1] Written on pure ANSI C, FatFs is platform-independent and easy to port on many hardware platforms such as 8051, PIC, AVR, ARM, Z80. FatFs is designed as thread-safe and is built into ChibiOS, RT-Thread, ErlendOS ...