A collection of information stored on a disk, and accessible using a name. Information that defines the characteristics of a file. Some characteristics of a file may be hidden, read-only, locked, or archive. Changing a file's attributes does not affect the file's contents but does affect the computer's ability to modify or view the file. A network computer that stores all of the users' programs and data files on its own hard disk.
Most large networks have at least one file server.
File servers are particularly useful for acting as post offices for electronic mail messages or other applications where users need to share files or send them back and forth. Because the file server spends its time running the network, nobody can use the file server computer to do anything else. The ability of a network computer to share files or directories on its local disks with remote computers. The amount of disk space that a file requires for its existence, usually measured in bytes. File system .