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For example, on a 1 GB disk, the allocation block size under HFS is 16 KB, so even a 1 byte file would take up 16 KB of disk space. This situation was less of a problem for users having large files (such as pictures, databases or audio) because these larger files wasted less space as a percentage of their file size.
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.
In computing, the BIOS parameter block, often shortened to BPB, is a data structure in the volume boot record (VBR) describing the physical layout of a data storage volume. On partitioned devices, such as hard disks , the BPB describes the volume partition, whereas, on unpartitioned devices, such as floppy disks , it describes the entire medium.
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.
Mac OS 7.6.1 (read-only) Macintosh File System ( MFS ) is a volume format (or disk file system ) created by Apple Computer for storing files on 400K floppy disks . MFS was introduced with the original Apple Macintosh computer in January 1984.
The ability to "zero" all data (multi-pass formatting) on a disk was not added until Mac OS X 10.2.3. [5] Further changes introduced in Mac OS X Tiger , specifically version 10.4.3, allowed Disk Utility to be used to verify the file structure of the current boot drive.
Xsan is based on the StorNext File System made by Quantum Corporation. [2] The StorNext File System and the Xsan file system share the same file system layout and the same protocol when talking to the metadata server. They also seem to share a common code base or very close development based on the new features developed for both file systems.
Apple [1] Disk Image is a disk image format commonly used by the macOS operating system. When opened, an Apple Disk Image is mounted as a volume within the Finder.. An Apple Disk Image can be structured according to one of several proprietary disk image formats, including the Universal Disk Image Format (UDIF) from Mac OS X and the New Disk Image Format (NDIF) from Mac OS 9.