Utility software is system software designed to help analyze, configure, optimize or maintain a computer. Utility software, along with operating system software, is a type of system software used to support the computer infrastructure, distinguishing it from application software which is aimed at directly performing tasks that benefit ordinary users.
Anti-virus utilities
scan for computer viruses
Achivers output a stream or a single file when provided with a directory or a set of files. Archive utilities, unlike archive suites, usually do not include compression or encryption capabilities.Some archive utilities may even have a separate un-archive utility for the reverse operation
Backup software can make copies of all information stored on a disk and restore either the entire disk (e.g. in an event of disk failure) or selected files (e.g. in an event of accidental deletion).
Data compression utilities output
a shorter stream or a smaller file when provided with a stream or file.
Data synchronization utilities establish consistency among data from a source to a target data storage and vice versa
Disk cleaners can find files that are unnecessary to computer operation, or take up considerable amounts of space. Disk cleaner helps the user to decide what to deletewhen their hard disk is full.
Network utilities analyze the computer's network connectivity, configure network settings, check data transfer or log events.
SCREENCSAVER were desired to prevent phosphor burn-in on CRT and plasma computer monitors by blanking the screen or filling it with moving images or patterns when the computer is not in use. Contemporary screensavers are used primarily for entertainment or security.
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