NationMaster - Encyclopedia: Gzip

gzip is a software application used for file compression. gzip is short for GNU zip; the program is a free software replacement for the compress program used in early Unix systems, intended for use by the GNU Project. A filename extension is a suffix to the name of a computer file applied to show its format. ... For mime as an art form, see mime artist. ... â€œSource codingâ€ redirects here. ... â€œSoftware developmentâ€ redirects here. ... The GNU logo, drawn by Etienne Suvasa The GNU Project was announced in 1983 by Richard Stallman. ... Code complete redirects here. ... is the 103rd day of the year (104th in leap years) in the Gregorian calendar. ... Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... An operating system (OS) is the software that manages the sharing of the resources of a computer and provides programmers with an interface used to access those resources. ... A cross-platform (or platform independent) programming language, software application or hardware device works on more than one system platform (e. ... Computer software can be organized into categories based on common function, type, or field of use. ... â€œSource codingâ€ redirects here. ... A software license is a legal agreement which may take the form of a proprietary or gratuitous license as well as a memorandum of contract between a producer and a user of computer software. ... The GNU logo The GNU General Public License (GNU GPL or simply GPL) is a widely-used free software license, originally written by Richard Stallman for the GNU project. ... A website (alternatively, Web site or web site) is a collection of Web pages, images, videos or other digital assets that is hosted on one or several Web server(s), usually accessible via the Internet, cell phone or a LAN. A Web page is a document, typically written in HTML... Application software is a subclass of computer software that employs the capabilities of a computer directly to a task that the user wishes to perform. ... In computer science, data compression or source coding is the process of encoding information using fewer bits (or other information-bearing units) than a more obvious representation would use, thanks to specific encoding schemes. ... Clockwise from top: The logo of the GNU Project, the Linux kernel mascot Tux, and the BSD Daemon Free software is software that can be used, studied, and modified without restriction, and which can be copied and redistributed in modified or unmodified form either without restriction, or with restrictions only... Categories: Disambiguation | Software stubs | Data compression software ... Filiation of Unix and Unix-like systems Unix (officially trademarked as UNIXÂ®, sometimes also written as or Â® with small caps) is a computer operating system originally developed in 1969 by a group of AT&T employees at Bell Labs including Ken Thompson, Dennis Ritchie and Douglas McIlroy. ... The GNU logo, drawn by Etienne Suvasa The GNU Project was announced in 1983 by Richard Stallman. ...

gzip was created by Jean-loup Gailly and Mark Adler. Version 0.1 was first publicly released on October 31, 1992. Version 1.0 followed in February 1993. is the 304th day of the year (305th in leap years) in the Gregorian calendar. ... Year 1992 (MCMXCII) was a leap year starting on Wednesday (link will display full 1992 Gregorian calendar). ...

OpenBSD's version of gzip is based on the older compress program instead of implemented separately, and was added in OpenBSD 3.4; the 'g' in its version stands for gratis.^[1] Categories: Disambiguation | Software stubs | Data compression software ...

File format

gzip is based on the DEFLATE algorithm, which is a combination of LZ77 and Huffman coding. DEFLATE was intended as a replacement for LZW and other patent-encumbered data compression algorithms which, at the time, limited the usability of compress and other popular archivers. DEFLATE is a lossless data compression algorithm that uses a combination of the LZ77 algorithm and Huffman coding. ... LZ77 and LZ78 are the names for the two lossless data compression algorithms published in papers by Abraham Lempel and Jacob Ziv in 1977 and 1978. ... In computer science and information theory, Huffman coding is an entropy encoding algorithm used for lossless data compression. ... LZW (Lempel-Ziv-Welch) is an implementation of a lossless data compression algorithm created by Abraham Lempel and Jacob Ziv. ... For other uses, see Patent (disambiguation). ... â€œSource codingâ€ redirects here. ... In mathematics, computing, linguistics, and related disciplines, an algorithm is a finite list of well-defined instructions for accomplishing some task that, given an initial state, will terminate in a defined end-state. ...

Although its file format also allows for multiple such streams to be concatenated together (these are simply decompressed concatenated as if they were one), gzip is normally used to compress just single files. Compressed archives are typically created by assembling collections of files into a single tar archive, and then compressing that archive with gzip. The final .tar.gz or .tgz file is usually called a tarball. In computer programming, a magic number is a constant used to identify the file or data type employed. ... Look up payload in Wiktionary, the free dictionary. ... A cyclic redundancy check (CRC) is a type of hash function used to produce a checksum which is a small integer from a large block of data, such as network traffic or computer files, in order to detect errors in transmission or duplication. ... In computing, tar (derived from tape archive) is both file format (in the form of a type of archive bitstream) and the name of the program used to handle such files. ... In computing, the tar file format is a type of archive file format: the Tape ARchive format. ...

gzip is not to be confused with the ZIP archive format, which also uses DEFLATE. The ZIP format can hold collections of files without an external archiver, but is less compact than compressed tarballs holding the same data because it compresses files individually and cannot take advantage of redundancy between files (solid compression). The ZIP file format is a popular data compression and archival format. ... In computing, the tar (file) format (derived from tape archive) is a type of archive bitstream or file format. ... In computing, solid compression refers to a method for data compression of multiple files, wherein all the compressed files are treated as a single data block. ...

zlib is an abstraction of the DEFLATE algorithm in library form which includes support both for the gzip file format and a lightweight stream format in its API. The zlib stream format, DEFLATE and the gzip file format were standardized respectively as RFC 1950, RFC 1951 and RFC 1952. zlib is an open-source, cross-platform data compression library. ...

The corresponding program for uncompressing gzipped files is gunzip. Both commands call the same binary; gunzip has the same effect as gzip -d.

Other uses

The "Content-Encoding" header in HTTP/1.1 allows clients to optionally receive compressed HTTP responses and (less commonly) to send compressed requests. The standard itself specifies two compression methods: “gzip” (RFC 1952; the content wrapped in a gzip stream) and “deflate” (RFC 1950; the content wrapped in a zlib-formatted stream). Compressed responses are supported by many HTTP client libraries, almost all modern browsers and both of the major HTTP server platforms, Apache and Microsoft IIS. Many server implementations, however, incorrectly implement the protocol by using the raw DEFLATE stream format (RFC 1951) instead. The bug is sufficiently pervasive that most modern browsers will accept both RFC 1951 and RFC 1950-formatted data for the "deflate" compressed method. HTTP (for HyperText Transfer Protocol) is the primary method used to convey information on the World Wide Web. ...

Since the late 1990s, bzip2, a file compression utility based on a block-sorting algorithm, has gained some popularity as a gzip replacement. It produces considerably smaller files (especially for source code and other structured text), but at the cost of memory and processing time (up to a factor of 4). bzip2-compressed tarballs are conventionally named .tar.bz2. For the band, see 1990s (band). ... The correct title of this article is . ...

AdvanceCOMP and 7-zip use a DEFLATE implementation which produces gzip-compatible files with better compression ratios than gzip itself, at the cost of more processor time. AdvanceCOMP is a set of command line data (re-)compression tools. ... 7-Zip is an open source file archiver designed originally for the Microsoft Windows operating system, and later made available to other systems. ...

References

Year 2007 (MMVII) is the current year, a common year starting on Monday of the Gregorian calendar and the AD/CE era in the 21st century. ... is the 204th day of the year (205th in leap years) in the Gregorian calendar. ...

See also

Image File history File links Free_Software_Portal_Logo. ... This is a list of file formats used by archivers and compressors. ... It has been suggested that this article or section be merged into Comparison of file archivers. ... The following tables compare general and technical information for a number of file archivers. ... This is a list of Unix programs. ... A free file format is a file format that is free of any patents or copyright. ...

External links

Categories: GNU project | Free data compression software | GNU project software | Archive formats | Unix software The GNU logo, drawn by Etienne Suvasa The GNU Project was announced in 1983 by Richard Stallman. ... The GNU Manifesto was written by Richard Stallman at the beginning of the GNU Project, to ask for participation and support. ... The GNU logo, drawn by Etienne Suvasa The GNU Project was announced in 1983 by Richard Stallman. ... The Free Software Foundation (FSF) is a non-profit corporation founded in October 1985 by Richard Stallman to support the free software movement (free as in freedom), and in particular the GNU project. ... This article or section does not adequately cite its references or sources. ... Image File history File links This is a lossless scalable vector image. ... The GNU logo The GNU General Public License (GNU GPL or simply GPL) is a widely-used free software license, originally written by Richard Stallman for the GNU project. ... The GNU Lesser General Public License (formerly the GNU Library General Public License) or LGPL is a free software license published by the Free Software Foundation. ... â€œGFDLâ€ redirects here. ... Some free software projects, notably GNU Guile,[1] the run-time libraries of GNAT,[1] and GNU Classpath,[2] distribute code under the terms of the GNU General Public License (GPL) but with an additional section known as the GPL linking exception. ... GNU (pronounced ) is a computer operating system composed entirely of free software. ... GNU variants are operating systems based on GNU but not using the Hurd. ... This article is about the mythical creature. ... Gnuzilla is a free software derivation of the Mozilla Application Suite created by the GNU Project as an attempt to be entirely free software. ... Gnash is a project which aims to create a player and browser plugin for the Adobe Flash file format which is free software, replacing the proprietary software niche currently occupied by Adobe Flash Player. ... -1... The GNU Compiler Collection (usually shortened to GCC) is a set of programming language compilers produced by the GNU Project. ... GNU Emacs is one of the two most popular versions of Emacs (see also XEmacs). ... Glibc is the GNU projects C standard library. ... The GNU Core Utilities or coreutils is a package of GNU software containing many of the basic tools such as cat, ls, and rm needed for Unix-like operating systems. ... The GNU build system is a suite of tools produced by the GNU project that assist in making packages portable to many UNIX-like systems. ... This is an incomplete list of the software packages developed for or maintained by the Free Software Foundation for GNU, a free UNIX-compatible operating system whose development started in 1984. ... Robert (aka Bob) Chassell was one of the founding directors of Free Software Foundation (FSF) in 1985. ... LoÃ¯c Dachary is a pioneer of the GNU Project and notably active in free software development since 1987. ... Ricardo Adolph Galli Granada, also known as Ricardo de Software Libre or Gallir, is doctor of computer science at the University of the Balearic Islands, where he teaches operating system design. ... Georg C. F. Greve (born March 10, 1973 in Helgoland, Germany) is initiator and president of the Free Software Foundation Europe. ... Federico Heinz is a Latin-American programmer and Free Software advocate living in Argentina. ... Benjamin Mako Hill (b. ... He was Chief Executive of Free Software Foundation and is now CTO of Software Freedom Law Center (SFLC). ... Eben Moglen is a professor of law and legal history at Columbia University, and is the founder, Director-Counsel and Chairman of Software Freedom Law Center, whose client list includes numerous pro bono clients, such as the Free Software Foundation. ... Brett Smith is a Free Software hacker and writer. ... Richard Matthew Stallman (born March 16, 1953), often abbreviated rms,[1] is a software freedom activist, hacker,[2] and software developer. ... William John Sullivan (more commonly known as John Sullivan[2]) (born December 6th, 1976) is a software freedom activist, hacker, and writer. ... This is a list of file formats used by archivers and compressors. ... This article or section is in need of attention from an expert on the subject. ... The archiver (also known simply as ar) is a UNIX utility that maintains groups of files as a single archive file. ... CPIO is both the name of a binary utility, and a form of digital archive. ... The title of this article is capitalised in error due to a technical restriction of MediaWiki. ... In computing, tar (derived from tape archive) is both file format (in the form of a type of archive bitstream) and the name of the program used to handle such files. ... The . ... The correct title of this article is . ... Lempel-Ziv-Markov chain-Algorithm (LZMA) is a data compression algorithm in development since 1998 and used in the 7z format of the 7-Zip archiver. ... LZOP is a free software file compression tool which uses LZO and is under the GPL license. ... Rzip is a data compression program based on bzip2. ... SQ was a program used in the early 1980s on both MS-DOS and CP/M computer systems to compress files so they use less space. ... Categories: Disambiguation | Software stubs | Data compression software ... LZW (Lempel-Ziv-Welch) is a lossless data compression algorithm. ... 7z is a compressed archive file format that supports several different data compression, encryption and pre-processing filters. ... 7zX is a file archiver for Mac OS X that handles the 7z archive file format. ... In computing, ACE is a proprietary data compression archive file format with superior compression compared to the ZIP file format, but at the cost of a lower compression speed. ... ARC is a file format by SEA (System Enhancement Associates) that was very popular before Phil Katzs introduction of the ZIP format. ... ALZip is an archive and compression utility from ESTsoft for Microsoft Windows. ... ARJ is a tool for creating compressed file archives. ... In computing, CAB is the Microsoft Windows native compressed archive format. ... Compact Pro is a software data compression utility for archiving and compressing files on the Apple Macintosh platform. ... Dar is an excellent archiving tool which can completely replace tar. ... DiskDoubler (DD) is a data compression utility for compressing files on the Apple Macintosh platform. ... In computing, DGCA is a freeware compression utility created in 2001 by Shin-ichi Tsuruta (鶴田真一, Shin-ichi Tsuruta). ... A file with the extension . ... In computing, GCA is a freeware compression utility created in 2000 by Shin-ichi Tsuruta. ... KGB Archiver is an open-source file archiver and data compression utility created by Tomasz Pawlak. ... LHA is a freeware compression utility and associated file format. ... LZX is the name of an LZ77 family compression algorithm. ... PAQ is a series of open source data compression archivers that have evolved through collaborative development to top rankings on several benchmarks measuring compression ratio (although at the expense of speed and memory usage). ... â€œRARâ€ redirects here. ... Quadruple D (which stands for Do the DirectDraw with Delphi) is a DirectX library for Delphi developed by a Japanese programmer named SANDMAN. It has become the de-facto graphics library for Japanese PC games written in Delphi. ... StuffIt is a family of software utilities for archiving and compressing files on the Apple Macintosh, Microsoft Windows and Linux platforms: it was originally produced for the Macintosh and remains common on that platform. ... The SQX-format is an open and free archive format. ... zoo is a compression program and format developed by Rahul Dhesi in the mid 1980s. ... The ZIP file format is a popular data compression and archival format. ... deb is the extension of the Debian software package format and the most often used name for such binary packages. ... Installer is an application included in Mac OS X which extracts and installs files out of . ... RPM Package Manager (originally Red Hat Package Manager, abbreviated RPM) is a package management system. ... Nero software setup is using Windows Installer program The Windows Installer (previously known as Microsoft Installer, codename Darwin) is an engine for the installation, maintenance, and removal of software on modern Microsoft Windows systems. ... In computing, a JAR file (or Java ARchive) file used to distribute a set of Java classes. ... In computing, a WAR file (short for Web ARchive) could be a JAR file used to distribute a collection of JavaServer Pages, servlets, Java classes, XML files, tag libraries and static Web pages (HTML and related files) that together constitute a Web application. ... A Resource Adapter is an archive file format defined in the J2EE Connector Architecture specification. ... This article or section is in need of attention from an expert on the subject. ... â€œSource codingâ€ redirects here. ... Look up Implementation in Wiktionary, the free dictionary. ... A video codec is a device or software that enables video compression and or decompression for digital video. ... Comparison of video codecs - is a process of codecs evaluation of similarities and differences. ... MPEG-4 Part 2 is a video compression technology developed by MPEG. It belongs to the MPEG-4 ISO/IEC standard (ISO/IEC 14496-2). ... 3ivx is a video codec created by 3ivx Technologies. ... DivX is a brand name of products created by DivX, Inc. ... Nero Digital is a suite of MPEG-4-compatible video and audio compression codecs integrated into a DVD ripping tool, Recode 2. ... FFmpeg is a collection of software libraries that can record, convert and stream digital audio and video in numerous formats. ... HDX4 is a MPEG4 codec developed by a German company named Jomigo Visual Technology. ... Xvid (formerly XviD) is a video codec library following the MPEG-4 standard. ... H.264 is a standard for video compression. ... CoreAVC is a video decoder developed by CoreCodec which implements the MPEG-4 AVC standard (also known as H.264) used, for example, in next-generation video disc formats HD DVD and Blu-Ray. ... Nero Digital is a suite of MPEG-4-compatible video and audio compression codecs integrated into a DVD ripping tool, Recode 2. ... QuickTime is a multimedia framework developed by Apple Inc. ... x264 is a free software library for encoding H.264/MPEG-4 AVC video streams. ... Lossless data compression is a class of data compression algorithms that allows the exact original data to be reconstructed from the compressed data. ... CorePNG is a lossless codec based on PNG. Essentially, each frame is compressed as a PNG, so if PNG does it, this codec does too. ... FFV1, which represents FF video codec 1, is an experimental video encoder and decoder employing relatively high compression that is lossless and intra-frame only. ... Huffyuv (or HuffYUV) is a lossless video codec created by Ben Rudiak-Gould which is meant to replace uncompressed YCbCr as a video capture format. ... Lagarith is an open source lossless video codec written by Ben Goldman. ... Compressed with Cinepak, quality 40% Cinepak is a video codec, developed by Radius Inc to accommodate 1x (150 kbyte/s) CD-ROM transfer rates. ... The Sorenson codec (also known as Sorenson Video Codec, Sorenson Video Quantizer or SVQ) is a digital video codec devised by the company Sorenson Media and used by Apples QuickTime and the newest version of Macromedia Flash, a special version called Sorenson Spark. ... Dirac is a prototype algorithm for the encoding and decoding (see codec) of raw video. ... Indeo Video (commonly known now simply as Indeo) is a video codec developed by Intel in 1992. ... VP3 was originally a proprietary video codec developed by On2 Technologies. ... TrueMotion VP7 is a video codec developed by On2 Technologies as a successor to earlier efforts such as VP3, VP5 and TrueMotion VP6. ... Pixlet is a video codec created by Apple Computer and based on wavelets, designed to enable viewing of full resolution, high resolution movies in real time at low DV data rates. ... Snow is an experimental video codec developed by Michael Niedermayer for the FFmpeg package. ... Ogg is an open standard for a free container format for digital multimedia, unrestricted by software patents and designed for efficient streaming and manipulation. ... Theora is a video codec being developed by the Xiph. ... Windows Media Video (WMV) is a generic name for the set of video codec technologies developed by Microsoft. ... An audio codec is a computer program that compresses/decompresses digital audio data according to a given audio file format or streaming audio format. ... The following tables compare general and technical information for a variety of audio codecs. ... Audio compression is a form of data compression designed to reduce the size of audio files. ... Pulse-code modulation (PCM) is a modulation technique. ... ATRAC (Adaptive TRansform Acoustic Coding) is a family of proprietary audio compression algorithms used to store information on MiniDiscs and other Sony-branded audio players. ... Dolby Digital is the marketing name for a series of lossy audio compression technologies by Dolby Laboratories. ... DTS Coherent Acoustics is the full name for the audio format standard usually known as just DTS. It is covered in U.S. Patent 5,956,674. ... Musepack or MPC is an open source lossy audio codec, specifically optimized for transparent compression of stereo audio at bitrates of 160-180 kbit/s. ... TwinVQ (transform-domain weighted interleaved vector quantization) is an audio compression technique developed by Nippon Telegraph and Telephone Corporation (NTT). ... Vorbis is an open source, lossy audio codec project headed by the Xiph. ... Windows Media Audio (WMA) is an audio data compression technology developed by Microsoft. ... Speech coding is the compression of speech (into a code) for transmission with speech codecs that use audio signal processing and speech processing techniques. ... The Internet Low Bit Rate Codec (iLBC) is a royalty free narrowband speech codec, developed by Global IP Sound (GIPS). ... IMBE a is speech coding standard. ... iSAC is a wideband speech codec, developed by Global IP Sound (GIPS). ... QCELP is a speech codec developed in 1994 to increase the speech quality of the IS-96A codec used earlier in CDMA networks. ... Speex is a free software speech codec that may be used on VoIP applications and podcasts. ... Truespeech is a proprietary audio codec produced by the DSP Group. ... Lossless data compression is a class of data compression algorithms that allows the exact original data to be reconstructed from the compressed data. ... Apple Lossless (also known as Apple Lossless Encoder, ALE, or Apple Lossless Audio Codec, ALAC) is an audio codec developed by Apple Inc. ... Dolby TrueHD logo Dolby TrueHD, from Dolby Laboratories, is an advanced lossless multi-channel audio codec, intended primarily for high-end home-entertainment equipment, such as Blu-ray Disc and HD DVD. In this application, Dolby TrueHD competes with DTS-HD Master Audio, another lossless codec from Digital Theater System. ... DTS logo DTS (also known as Digital Theater Systems), owned by DTS, Inc. ... FLAC, an acronym for Free Lossless Audio Codec, is a popular file format for audio data compression. ... Monkeyâ€™s Audio is a file format for audio data compression. ... Please wikify (format) this article as suggested in the Guide to layout and the Manual of Style. ... True Audio (abbreviated TTA) is a free, simple real-time lossless audio codec, based on adaptive prognostic filters which has shown satisfactory results comparing to majority of modern analogs. ... WavPack is a free, open source lossless audio compression format developed by David Bryant. ... Windows Media Audio 9 Lossless is a lossless data lossless audio codec by Microsoft, released in early 2003. ... It has been suggested that this article or section be merged into Comparison of file archivers. ... The following tables compare general and technical information for a number of file archivers. ... Open source refers to projects that are open to the public and which draw on other projects that are freely available to the general public. ... 7-Zip is an open source file archiver designed originally for the Microsoft Windows operating system, and later made available to other systems. ... Ark is an archiving tool for KDE, included into kdeutils package. ... File-roller is an archive manager for the GNOME environment. ... Info-ZIP is an open source version of Phil Katzs deflate and inflate routines used in his popular file compression program, PKZIP. The free code released by the Info-ZIP project under a BSD license spawned a horde of PKZIP imitators (WinZip, PicoZip, PowerArchiver, Turbozip, PowerZip and many more... KGB Archiver is an open-source file archiver and data compression utility created by Tomasz Pawlak. ... PeaZip is an open source OS-portable file archiver, released under LGPL for Microsoft Windows and Linux (Linux version requires libgdk_pixbuf library). ... The Unarchiver is an open source data compression utility, which supports more formats than BOMArchiveHelper, the built-in archive unpacker program in Mac OS X. It can also handle filenames in foreign character sets, created with non-English versions of other operating systems. ... The term Freeware refers to gratis proprietary software with closed source. ... In computing, DGCA is a freeware compression utility created in 2001 by Shin-ichi Tsuruta (鶴田真一, Shin-ichi Tsuruta). ... This article needs to be cleaned up to conform to a higher standard of quality. ... In computing, GCA is a freeware compression utility created in 2000 by Shin-ichi Tsuruta. ... IZArc is a freeware file archiver for Microsoft Windows. ... StuffIt Expander used to be a freeware, closed source data compression software utility developed by Allume Systems (formerly Aladdin Systems) It runs in Mac OS Classic, Mac OS X, Microsoft Windows, and Linux/UNIX. It does not compress files. ... TUGZip is a freeware file archiver for Microsoft Windows. ... Zipeg is a decompression application made by Leo Kuznetsov for Mac OS X that handles zip files. ... ZipGenius is a freeware file archiver designed for Microsoft Windows users, developed by Matteo Riso of M.Dev Software. ... UHarc is a solid, high-compression 386+ DOS and Windows file archiver with multimedia support. ... It has been suggested that closed source be merged into this article or section. ... ALZip is an archive and compression utility from ESTsoft for Microsoft Windows. ... BOMArchiveHelper is the default archive file handler in Mac OS X. It is a service application that has no GUI when double-clicked, rather it is invoked by opening its associated files or by choosing Create archive of file in the Finders contextual menu. ... Due to the Mac OS forked file structure, transferring Mac OS files to non-Macintosh computers is problematic. ... PowerArchiver is a proprietary file archiver designed for Microsoft Windows users, developed by ConeXware Inc. ... Squeez is a shareware file archiver and data compression utility by Speedproject. ... StuffIt is a family of software utilities for archiving and compressing files on the Apple Macintosh, Microsoft Windows and Linux platforms: it was originally produced for the Macintosh and remains common on that platform. ... WinAce is an archiving program with its own relatively powerful ACE compression format and built-in support for other common archive formats types such as ZIP, RAR and MS-CAB. The Mac OS X and Linux versions are called Unace and are command line programs. ... WinRAR is a shareware file archiver and data compression utility by Eugene Roshal. ... WinRK is a commercial file archiver program for Microsoft Windows. ... WinZip Computing Inc. ... This article or section does not adequately cite its references or sources. ... ARC is a file format by SEA (System Enhancement Associates) that was very popular before Phil Katzs introduction of the ZIP format. ... ARJ is a tool for creating compressed file archives. ... JAR is a tool for creating compressed file archives. ... The correct title of this article is . ... Categories: Disambiguation | Software stubs | Data compression software ... Info-ZIP is an open source version of Phil Katzs deflate and inflate routines used in his popular file compression program, PKZIP. The free code released by the Info-ZIP project under a BSD license spawned a horde of PKZIP imitators (WinZip, PicoZip, PowerArchiver, Turbozip, PowerZip and many more... LHA is a freeware compression utility and associated file format. ... LZOP is a free software file compression tool which uses LZO and is under the GPL license. ... PAQ is a series of open source data compression archivers that have evolved through collaborative development to top rankings on several benchmarks measuring compression ratio (although at the expense of speed and memory usage). ... PKZIP is an archiving tool originally written by the late Phil Katz, and marketed by his company PKWARE, Inc. ... â€œRARâ€ redirects here. ... Smart Bitrate Control, commonly referred to as SBC, is a technique for achieving greatly improved video compression efficiency using the DivX;-)3. ... UPX, the Ultimate Packer for eXecutables, is an open source executable packer (EXE packer) supporting a number of file formats. ...

Contents

Other uses

References

See also

External links