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J
- J Strother MooreJ Strother Moore (his first name is the alphabetic character "J" – not an abbreviated "J."
- J-pole antennaVertical omnidirectional transmitting antenna
- Jabber ZeusJabber Zeus was a cybercriminal syndicate and associated Trojan horse created and run by h
- Jaccard indexMeasure of similarity and diversity between sets
- Jack DongarraAmerican computer scientist (born 1950)
- Jack EdmondsAmerican/Canadian mathematician and computer scientist
- Jacobian curveIn mathematics, the Jacobi curve is a representation of an elliptic curve different from t
- Jaime LevyAmerican multimedia artist, interface designer and user experience strategist
- Jakob Nielsen (usability consultant)Danish computer scientist (born 1957)
- James B. SaxeJames Benjamin Saxe is an American computer scientist who has worked for many years at the
- James H. WilkinsonEnglish mathematician and computer scientist
- James L. BuieAmerican scientist and inventor (1920–1988)
- James Z. WangJames Ze Wang (Chinese: 王则; born 1972) is a Chinese-American computer scientist. He is a d
- Jamie FlyJamie M. Fly is an American media executive and former president and chief executive offic
- Jan DietzDutch computer scientist (born 1945)
- Jan Karel LenstraJan Karel Lenstra (born 19 December 1947, in Zaandam) is a Dutch mathematician and operati
- Janis BubenkoSwedish computer scientist (1935–2022)
- Japan Electronic Industries Development AssociationThe Japan Electronic Industry Development Association (社団法人日本電子工業振興協会, Shadan-hōjin Nihon
- Japan Electronics and Information Technology Industries AssociationThe Japan Electronics and Information Technology Industries Association (Japanese: 社団法人電子情
- Jarkko OikarinenJarkko Oikarinen (born 16 August 1967) is a Finnish IT professional and the inventor of th
- Jart ArminCybercrime and computer security investigator and analyst
- JasPerJasPer is a computer software project to create a reference implementation of the codec sp
- Java Agent Development FrameworkJava Agent Development Framework, or JADE, is a software framework for the development of
- Java appletSmall application written in Java
- Java CardJava Card is a software technology that allows Java-based applications (applets) to be run
- Java collections frameworkThe Java collections framework is a set of classes and interfaces that implement commonly
- Java Database ConnectivityAPI for Java
- Java Platform, Standard EditionComputing software platform
- Java virtual machineVirtual machine that runs Java programs
- JavaFXJavaFX is a software platform for creating and delivering desktop applications, as well as
- JAX (software)Machine-learning framework
- Jay A. SchwarzAmerican government official
- Jay Martin TenenbaumAmerican computer scientist and Internet commerce pioneer
- JDBC driverA JDBC driver is a software component enabling a Java application to interact with a datab
- Jean VuilleminJean Vuillemin is a French computer scientist known for his work in data structures and pa
- Jean-Baptiste WaldnerFrench engineer
- Jeffrey UllmanAmerican computer scientist
- Jens Eilstrup RasmussenJens Eilstrup Rasmussen is a Danish software engineer, technology executive, and co-founde
- Jeremy AllaireJeremy D. Allaire (born 13 May 1971) is an American technologist and Internet entrepreneur
- Jeskola BuzzJeskola Buzz is a freeware modular software music studio environment designed to run on Mi
- Jian XuSoftware engineer from China
- Jim Creek Naval Radio StationUnited States naval transmission facility near Oso, Washington
- Jim Gray (computer scientist)American computer scientist
- Jim Hall (computer programmer)Jim Hall (James F. Hall) is a computer programmer and advocate of free software, best know
- Jim HighsmithAmerican software engineer (born 1945)
- Jindalee Operational Radar NetworkOver-the-horizon radar network in Australia
- Jinja (template engine)Web template engine for Python
- JIS X 0211JIS X 0211, originally designated JIS C 6323 is a Japanese Industrial Standard defining C0
- Jitendra MalikJitendra Malik (born 11 October 1960) is an Indian-American academic who is the Arthur J.
- JitterClock deviation from perfect periodicity
- Job schedulerComputer application for controlling unattended background program execution of jobs
- Job-shop schedulingOptimization problem
- Joel EmerAmerican electrical engineer
- Johanna PieschAustrian mathematician
- John Alan RobinsonAmerican computer scientist
- John Amsden StarkweatherAmerican psychologist
- John BackusAmerican computer scientist (1924–2007)
- John GageAmerican computer scientist (born 1942)
- John HopcroftAmerican computer scientist (born 1939)
- John HopfieldAmerican scientist (born 1933)
- John Iliffe (computer designer)British computer designer (1931-2020)
- John KlensinAmerican computer scientist
- John KrogstieNorwegian computer scientist
- John LansdownBritish computer graphics pioneer
- John LionsJohn Lions (19 January 1937 – 5 December 1998) was an Australian computer scientist. He is
- John SchulmanAmerican computer scientist
- Join-patternSoftware design pattern for parallel computing
- Joint Sigint Cyber UnitDutch government organisation
- Joint Threat Research Intelligence GroupBritish intelligence agency unit
- Jon KraftJon Kraft is an American business executive best known as a co-founder of Pandora Media, I
- Joris van der HoevenJoris van der Hoeven (born 1971) is a Dutch mathematician and computer scientist, speciali
- Joseph MauborgneJoseph Oswald Mauborgne (February 26, 1881 – June 7, 1971) co-invented the one-time pad wi
- JournalistPerson who collects, writes and distributes news and similar information
- JoystickControl lever used in aircraft and video games
- JPEGLossy compression method for reducing the size of digital images
- JPEG 2000Image compression standard and coding system
- JPEG Network GraphicsJPEG Network Graphics (JNG, ) is a JPEG-based graphics file format which is closely relate
- JSONData-interchange format
- Judea PearlAmerican computer scientist (born 1936)
- Judiciary of SyriaThe judicial system of Syria is a synthesis of Ottoman, French, and Islamic laws. The civi
- Julia (programming language)Dynamic programming language
- Junk faxJunk faxes are a form of telemarketing where unsolicited advertisements are sent via fax t
- Jürgen SchmidhuberGerman computer scientist (born 1963)
- Just-in-time compilationCompiling bytecode to machine code at runtime
- JythonJava implementation of Python