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file system

   Also found in: Dictionary/thesaurus, Acronyms, Wikipedia 0.01 sec.
file system
(1) 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 cluster, path, FAT32, NTFS, HFS, NFS, UFS, ext, ZFS and hierarchical file system.

(2) A data processing application that manages individual files. It opens, closes, reads and writes the file as a single entity. In a file system, files are related to each other by customized programming (customers to orders, vendors to purchases, etc.). Contrast with a "relational database," which has built-in constructs that can more easily form these relationships. For example, they can be used to join files together and split them apart, all without tedious programming. See relational database and DBMS.
(operating system)file 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).


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The NTFS file system has been designed to much less prone to corruption than FAT or FAT32 file system.
The new lock architecture in the file system adds the ability to support large numbers of virtual machine hosts accessing virtual machine files on a shared SAN volume with near raw disk performance.
76 This beginners' guide introduces the basic commands for working in the Unix operating system and explains the organization of the Unix file system.
 
 
 
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