file system

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Related to Disk file system: Network file system, Flash File System

file system

(operating system)
(FS, or "filesystem") 1. A system for organizing directories and files, generally in terms of how it is implemented in the disk operating system. E.g., "The Macintosh file system is just dandy as long as you don't have to interface it with any other file systems".

2. The collection of files and directories stored on a given drive (floppy drive, hard drive, disk partition, logical drive, RAM drive, etc.). E.g., "mount attaches a named file system to the file system hierarchy at the pathname location directory [...]" -- Unix manual page for "mount(8)".

As an extension of this sense, "file system" is sometimes used to refer to the representatation of the file system's organisation (e.g. its file allocation table) as opposed the actual content of the files in the file system.

Unix manual page: fs(5), mount(8).

file system

(1) The software that people use to copy, move, rename and delete files is known as a "file manager," not a file system (see file manager).

(2) The method for storing and retrieving files on a disk. It is system software that takes commands from the operating system to read and write the disk clusters (groups of sectors). The file system manages a folder/directory structure, which provides an index to the files, and it defines the syntax used to access them (how the "path" to the file is coded). File systems dictate how files are named as well as the maximum size of a file or volume.

There are numerous file systems in use; for example, FAT32 and NTFS are Windows file systems, and HFS is used on Macs. Linux uses ext2, ext3 and FAT32. Unix systems use UFS, ext2, ext3 and ZFS. See block level, cluster, path, FAT32, NTFS, HFS, NFS, UFS, ext, ZFS and hierarchical file system.
References in periodicals archive ?
1 features HFS+, a new advanced disk file system and format which stores small files much more efficiently than the existing(R) Mac file system.
The Time Machine reference design eliminates this limitation through its unique audio-video hard disk file system that effectively bridges the chasm between the PVR and the PC, making data transfers between the two simple and straightforward.
Reliance/XP - Open Storage Manager (OSM) extends the capacity of existing network disk file system resources and eliminates productivity losses due to disk out-of-space conditions.
Archive -- involves copying disk file systems and placing the copy (usually on tape) into long-term storage.
The new UniTree Central File Manager for Linux (UCFM for Linux) is designed to transparently move data from disk file systems to removable media such as tape or optical for storage and automated disk management.