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Like NTFS, exFAT can pre-allocate disk space for a file by just marking arbitrary space on disk as "allocated". For each file, exFAT uses two separate 64-bit fields in the directory: the valid data length (VDL), which indicates the real size of the file, and the physical data length.
In FAT and NTFS file systems, a volume serial number is a feature used to determine if a disk is present in a drive or not, and to detect if it was exchanged with another one. This identification system was created by Microsoft and IBM during their development of OS/2 . [ 6 ]
NTFS: Partial (with third-party drivers) Yes Native since Linux Kernel 5.15 NTFS3. Older kernels may use backported NTFS3 driver or ntfs-3g [72] Read only, write support needs Paragon NTFS or ntfs-3g: Needs 3rd-party drivers like Paragon NTFS for Win98, DiskInternals NTFS Reader: Yes No Yes with ntfs-3g? Yes with ntfs-3g: No Yes with ntfs-3g?
File Allocation Table (FAT) is a file system developed for personal computers and was the default filesystem 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.
NTFS 1.0 is incompatible with 1.1 and newer: volumes written by Windows NT 3.5x cannot be read by Windows NT 3.1 until an update (available on the NT 3.5x installation media) is installed. [19] 1.1 Windows NT 3.5: 1994 Named streams and access control lists [20] NTFS compression support was added in Windows NT 3.51: 1.2 Windows NT 4.0: 1996
— Microsoft documents a version 4.0 BPB and a new "FAT32 BIOS Parameter Block (BPB)" (a version 7.0 BPB) for DOS-Windows 98 that is "larger than a standard BPB", has an "identical structure to a standard BPB", but that also "includes several extra fields". Microsoft. "Chapter 32 - Disk Concepts and Troubleshooting".
FAT32 addresses the limitations in FAT12 and FAT16, except for the file size limit of close to 4 GB, but it remains limited compared to NTFS. FAT12, FAT16 and FAT32 also have a limit of eight characters for the file name, and three characters for the extension (such as .exe). This is commonly referred to as the 8.3 filename limit.
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.
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