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Long filename (LFN) support is Microsoft's backward-compatible extension of the 8.3 filename (short filename) naming scheme used in MS-DOS.Long filenames can be more descriptive, including longer filename extensions such as .jpeg, .tiff, and .html that are common on other operating systems, rather than specialized shortened names such as .jpg, .tif, or .htm.
The original File Allocation Table (FAT) file system, used by Standalone Disk BASIC-80, had a 6.3 file name, with a maximum of 6 bytes in the name and a maximum of 3 bytes in the extension. The FAT12 and FAT16 file systems in IBM PC DOS / MS-DOS and Microsoft Windows prior to Windows 95 used the same 8.3 convention as the CP/M file system.
No limit defined [cf] 64 MiB (67.10 MB) 2 GiB (2.147 GB) ? ZFS: 1023 bytes Any Unicode except NUL No limit defined [cf] 16 EiB (18.44 EB) 281,474,976,710,656 YiB (2 128 bytes) 2 128: File system Maximum filename length Allowable characters in directory entries [cc] Maximum pathname length Maximum file size Maximum volume size [cd] Max number of ...
Max filename length: 8.3 filename, or 255 UCS-2 characters when using LFN [nb 1] Features; ... In Windows NT, support for VFAT long filenames began with version 3.5.
The NTFS maximum theoretical limit on the size of individual files is 16 EB [a] [27] (16 × 1024 6 or 2 64 bytes) minus 1 KB, which totals 18,446,744,073,709,550,592 bytes. With Windows 10 version 1709 and Windows Server 2019, the maximum implemented file size is 8 PB [a] minus 2 MB or 9,007,199,252,643,840 bytes. [5]
See OEM Name precautions for PC formatted disks above. The offset and length of this entry are different compared to the entry on PC formatted disks. 0x008 3 Disk serial number [5] (default: 0x00 0x00 0x00), used by Atari ST to detect a disk change. (Windows 9x Volume Tracker will always store "IHC" here on non-write-protected floppy disks; see ...
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).
Max filename length: 255 characters: Allowed filename ... Support was added to regular Windows with Windows Vista Service Pack 1 and Windows Server 2008, ...