file compression — A technique that shrinks program or data files so that they occupy less disk space. The file must then be extracted or decompressed before use. Some types of files, such as word processor documents, can be compressed by 50 percent or more.… … Dictionary of networking
file compression utility — compression program, utility program used to store files in a manner which conserves disk space … English contemporary dictionary
compression program — program which constricts the volume of a computer file by means of a special algorithm … English contemporary dictionary
Compression virus — is an example of a benevolent Computer virus invented by Fred Cohen. It searches for an uninfected executable file, compresses the file and prepends itself to it. The virus can be described in pseudo code [1] program compression virus:=… … Wikipedia
File archiver — A file archiver is a computer program that combines a number of files together into one archive file, or a series of archive files, for easier transportation or storage. Many file archivers employ Archive formats that provide lossless data… … Wikipedia
File system — For library and office filing systems, see Library classification. Further information: Filing cabinet A file system (or filesystem) is a means to organize data expected to be retained after a program terminates by providing procedures to store,… … Wikipedia
File format — A file format is a particular way that information is encoded for storage in a computer file. Since a disk drive, or indeed any computer storage, can store only bits, the computer must have some way of converting information to 0s and 1s and vice … Wikipedia
Lossless data compression — is a class of data compression algorithms that allows the exact original data to be reconstructed from the compressed data. The term lossless is in contrast to lossy data compression, which only allows an approximation of the original data to be… … Wikipedia
List of file formats — This is an incomplete list, which may never be able to satisfy particular standards for completeness. You can help by expanding it with reliably sourced entries. See also: List of file formats (alphabetical) This is a list of file formats… … Wikipedia
Tar (file format) — infobox file format name = tar icon = caption = GNU tar 1.16 showing three common types of Tarballs (shown in red). extension = .tar mime = application/x tar uniform type = public.tar archive magic = ustar at byte 257 genre = file archiver… … Wikipedia
