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- E-carrierTelephone transmission carrier system used outside US
- E-commerce in IndiaThe size of the e-commerce market in India was estimated at US$147.3 billion in 2024, with
- E-commerce payment systemSystem that facilitates e-commerce transactions
- E-democracyUse of information and communication technology in political and governance processes
- E-flux publicationse-flux produces both the e-flux journal and e-flux journal reader series. The monthly art
- E-G8 ForumPublic policy summit on the topic of the Internet
- E-governanceApplication of information technology for delivering government services
- E-participationTechnology-assisted citizen participation in government processes
- E-procurementPurchase or sale conducted through the internet
- E-readerDevice for reading e-books
- E-ScienceE-Science or eScience is computationally intensive science that is carried out in highly d
- E-servicesElectronic services or e-services are services that make use of information and communicat
- E-textAny document that is read in digital form
- E.123E.123 is an international standard by the Telecommunication Standardization Sector of the
- E0 (cipher)Stream cipher
- E2 (cipher)In cryptography, E2 is a symmetric block cipher which was created in 1998 by NTT and submi
- E6BCircular slide rule used in aviation
- Earley parserAlgorithm for parsing context-free languages
- Earliest deadline first schedulingDynamic scheduling algorithm
- Earliest eligible virtual deadline first schedulingEarliest eligible virtual deadline first (EEVDF) is a dynamic priority proportional share
- EARN IT ActThe EARN IT Act (S. 3538) is a proposed legislation first introduced in 2020 in the United
- Earth mover's distanceIn computer science, the earth mover's distance (EMD) is a measure of dissimilarity betwee
- Earth-return telegraphTelegraphy transmission method
- EasynetManaged Services Provider
- Eating your own dog foodTerm for an organization using its own product
- EavesdroppingAct of secretly listening to the private conversation of others
- EAX modeAuthenticated encryption mode for block ciphers
- EBCDICEight-bit character encoding system invented by IBM
- EbookBook published in digital form
- EC-CouncilAmerican cybersecurity training organization
- ECHELONSignals intelligence collection and analysis network
- Echo state networkType of reservoir computer
- Echo suppression and cancellationPreventing or removing echo in telephony
- Eckert–Mauchly AwardThe Eckert–Mauchly Award recognizes contributions to digital systems and computer architec
- Eclipse (software)Software development environment
- Ecma InternationalStandards organization for information and communication systems
- ECMAScriptSpecification for JavaScript and other programming languages
- ECML PKDDMachine-learning and computational-neuroscience conference
- EcoDiscAn EcoDisc is a patented type of DVD which is thinner than a conventional DVD because it i
- EComStationeComStation or eCS is an operating system based on OS/2 Warp for the 32-bit x86 architectu
- Economics of digitizationField of study
- Economics of securityThe economics of information security addresses the economic aspects of privacy and comput
- ECRYPTEuropean information security initiative
- Ed IacobucciEdward E. Iacobucci (September 26, 1953 – June 21, 2013) was an Argentine-American busines
- EdDSADigital signature scheme
- Edge computingDistributed computing paradigm
- Edge detectionImage processing method
- Edge deviceIn computer networking, an edge device is a device that provides an entry point into enter
- EDIFACTTechnical standard
- Edit conflictComputer problem
- Edit distanceComputer science metric of string similarity
- Edmonds' algorithmAlgorithm for the directed version of the minimum spanning tree problem
- Edmund EvansEdmund Evans (23 February 1826 – 21 August 1905) was an English wood-engraver and colour p
- EDRAMDynamic random-access memory included in a processor chip or package
- EDSAC1940s–1950s British computer
- EDVACEarly computer
- Edwards curveFamily of elliptic curves used in cryptography
- EEPROMComputer memory used for small quantities of data
- EerselEersel (Dutch pronunciation: ) is a municipality and a town in southern Netherlands in the
- EFF DES crackerCryptographic hardware
- EFF Pioneer AwardScience and engineering award
- Effect systemIn computing, an effect system is a formal system that describes the computational effects
- Effective accelerationismPhilosophical and social movement
- Eiffel (programming language)Object-oriented programming language
- EKA2EKA2 (EPOC Kernel Architecture 2) is the second-generation Symbian platform real-time oper
- Elasticity (computing)Degree to which a computer system can adapt to workload changes
- Election securityElection cybersecurity or election security refers to the protection of elections and voti
- Electoral rollList of persons who are eligible to vote in a particular electoral district
- Electrical telegraphEarly system for transmitting text over wires
- Electrical telegraphy in the United KingdomIn the nineteenth century, the United Kingdom of Great Britain and Ireland had the world's
- Electrochemical RAMNovel type of computer memory
- Electrologica X1Early Dutch computer
- Electrolytic capacitorType of capacitor
- Electromagnetic attackSide-channel attack in cryptography
- Electromagnetic shieldingUsing conductive or magnetic materials to reduce electromagnetic field intensity
- Electronic authenticationProcess of establishing confidence in user identity
- Electronic billingElectronic presenting and payment of bills
- Electronic circuitElectrical circuit with active components
- Electronic circuit designElectronic circuit design comprises the analysis and synthesis of electronic circuits.
- Electronic communication networkNetwork for trading financial products
- Electronic Communications Privacy Act1986 United States federal law
- Electronic componentDiscrete device in an electronic system
- Electronic data interchangeElectronic communication method
- Electronic design automationSoftware for designing electronic systems
- Electronic filterElectronic device
- Electronic Frontier FoundationDigital rights group
- Electronic Industries Alliance1924–2011 American standards and trade organization
- Electronic invoicingForm of electronic billing
- Electronic mixerAn electronic mixer is a device that combines two or more electrical or electronic signals
- Electronic oscillatorType of electronic circuit
- Electronic Privacy Information CenterResearch institute in Washington D.C., US
- Electronic publishingPublishing and disseminating documents via electronic means
- Electronic quantum holographyInformation storage technology
- Electronic Recording Machine, AccountingERMA (Electronic Recording Machine, Accounting) was a computer technology that automated b
- Electronic signatureData in electronic form, which is logically associated with other data in electronic form
- Electronic test equipmentElectronic test equipment is used to create signals and capture responses from electronic
- Electronic trading platformSoftware for trading financial products
- Electronic voting in the United StatesFacet of American elections
- Electronic waste recyclingForm of recycling
- Electronics Technicians AssociationUS-based certification organization
- Elementary cellular automatonIn mathematics and computability theory, an elementary cellular automaton is a one-dimensi
- ElGamal signature schemeThe ElGamal signature scheme is a digital signature scheme which is based on the difficult
- Elias LadopoulosElias Ladopoulos is a technologist and investor from New York City. Under the pseudonym Ac
- ELIZANatural language processing computer program
- Elizabeth CuthillElizabeth Hahnemann Cuthill (October 16, 1923 – January 11, 2011) was an American applied
- Elizabeth RatherElizabeth "Bess" D. Rather (born 1940) is the co-founder of FORTH, Inc. and is a leading e
- Elliptic Curve Digital Signature AlgorithmCryptographic algorithm for digital signatures
- Elliptic curve point multiplicationMathematical operation on points on an elliptic curve
- Elliptic-curve cryptographyApproach to public-key cryptography
- Elliptic-curve Diffie–HellmanKey agreement protocol
- EM MicroelectronicEM Microelectronic, based in Marin, La Tène near Neuchâtel in Switzerland, is a developer
- EMachines eOneDesktop computer
- EmacsFamily of text editors
- Emacs Speaks StatisticsEmacs Speaks Statistics (ESS) is an Emacs package for programming in statistical languages
- EmacspeakAudio computer desktop and speech interface
- Email addressIdentifier of the destination where email messages are delivered
- Email attachmentComputer file sent along with an email
- Email authenticationTechniques aimed at providing verifiable information about the origin of email messages
- Email boxDestination to which emails are delivered
- Email clientComputer program used to access and manage a user's email
- Email encryptionEmail encryption is encryption of email messages to protect the content from being read by
- Email filteringProcessing of email to organize it according to specified criteria
- Email fraudDeception through email, made for personal gain or to damage another individual
- Email hackingUnauthorized access or manipulation
- Email marketingAct of sending a commercial message using email
- Email privacyOverview regarding protection of personal privacy rights
- Email spamUnsolicited messages sent by email
- Email spoofingCreating email spam or phishing messages with a forged sender identity or address
- Email trackingTo check if an email has been read
- Embarrassingly parallelProblem easily dividable into parallel tasks
- Embedded operating systemType of computer operating system
- Embedded softwareEmbedded software is computer software, written to control machines or devices that are no
- Embedded systemComputer system with a dedicated function
- Embrace, extend, and extinguishAnti-competitive business strategy
- EMC SymmetrixEnterprise storage array
- Emergency control centreIn the United Kingdom, an emergency control centre or emergency communications centre (ECC
- Emergent CodingDecentralized software development paradigm
- Emergent democracyIn politics, emergent democracy represents the rise of political structures and behaviors
- EmojiSymbols for emotional cues in text
- Emphasis (telecommunications)Process for reducing noise
- Empirical risk minimizationPrinciple in statistical learning theory
- Empress Embedded DatabaseEmpress Embedded Database is a relational database management system that has been embedde
- Empty stringUnique string of length zero
- EmulatorSystem allowing a device to imitate another
- Encapsulation (computer programming)Bundling of data
- Encrypting File SystemFeature in Microsoft Windows
- Encryption softwareSoftware that uses cryptography
- End userRegular user of a product
- End-to-end encryptionSecure communications method
- End-user license agreementSoftware license agreements
- EndiannessOrder of bytes in a computer word
- Enfilade (Xanadu)Enfilades are a class of tree data structures invented by computer scientist Ted Nelson an
- English country houseLarger house or mansion estate in England
- English in computingEnglish as lingua franca of programming and computer science
- English WikipediaEnglish-language edition of Wikipedia
- Enhanced 911System that provides a caller's location to emergency dispatchers
- Enhanced Versatile DiscThe Enhanced Versatile Disc (EVD) is an optical-medium-based digital audio/video format, d
- Enigma machineGerman cipher machine during World War II
- Enigma rotor detailsTechnical details about the Enigma machine
- EntanetBritish wholesale internet service provider
- Enterprise application integrationEnterprise application integration (EAI) is the use of software and computer systems' arch
- Enterprise architectureBusiness function methodology
- Enterprise bus matrixThe enterprise bus matrix is a data warehouse planning tool and model created by Ralph Kim
- Enterprise information integrationType of information display
- Enterprise information security architectureEnterprise information security architecture (EISA) is the practice of designing, construc
- Enterprise integrationEnterprise integration is a technical field of enterprise architecture, which is focused o
- Enterprise service busCommunication system in a service-oriented architecture
- Enterprise softwareSoftware targeted towards corporations/organisations
- EnthoughtEnthought, Inc. is a software company based in Austin, Texas, United States that develops
- Entity FrameworkOpen source object-relational mapping framework
- Entropy codingLossless data compression scheme
- Enumerated typeNamed set of data type values
- Environment variableUser-definable variable associated with each running process in many operating systems
- Environmental impact of AIThe environmental impact of the design, training, deployment and use of artificial intelli
- Envy-freenessEnvy-freeness, also known as no-envy, is a criterion for fair division. It says that, when
- EOSDISNASA program capability
- Ephemeral portAn ephemeral port is a communications endpoint (port) of a transport layer protocol of the
- Ephraim ChambersEphraim Chambers (c. 1680 – 15 May 1740) was an English writer and encyclopaedist, who is
- Epic (web browser)Indian Web Browser based on chromium
- EPROMEarly type of solid state computer memory
- Epson HX-20Laptop computer released by Epson in 1981
- EPUBE-book format
- Equalization (communications)In telecommunication, equalization is the reversal of distortion incurred by a signal tran
- Equipment roomA technical room or equipment room is a room where technical equipment has been installed,
- Equivalence (formal languages)In formal language theory, weak equivalence of two grammars means they generate the same s
- Eric (software)Python development environment
- Eric CorleyEric Gordon Corley (born December 16, 1959), also frequently referred to by his pen name o
- Erlang (programming language)Programming language
- Ernie BotChatbot developed by Baidu
- Ernst KussulLithuanian researcher
- Eros NowIndian VOD, OTT streaming platform
- ERP securityERP Security is a wide range of measures aimed at protecting Enterprise resource planning
- ERP5ERP5 is an open source ERP based on Python and Zope. It has the particularity of being bas
- ErratumCorrection of a published text
- Error codeCode that indicates the nature of an error
- Error correction codeScheme for controlling errors in data over noisy communication channels
- Error messageInformation describing a problematic situation
- ERS 3500 and ERS 2500 seriesEthernet Routing Switch 3500 series and Ethernet Routing Switch 2500 series or ERS 3500 an
- ESET NOD32Computer protection software
- Esoteric programming languageProgramming language for experimentation or art
- ESPN+On-demand sports streaming service
- Espresso (processor)32-bit CPU for the Wii U
- EsterelProgramming language
- EtchingIntaglio printmaking technique
- Ethernet hubDevice for interconnecting Ethernet devices
- Ethernet over twisted pairEthernet physical layers using twisted-pair cables
- Ethernet physical layerElectrical or optical properties between network devices
- Etoys (programming language)Etoys is a child-friendly computer environment and object-oriented prototype-based program
- ETRAX CRISThe ETRAX CRIS is a RISC ISA and series of CPUs designed and manufactured by Axis Communic
- Eugene GoostmanChatbot that arguably passed the Turing test
- Euler (programming language)Euler is a programming language created by Niklaus Wirth and Helmut Weber, conceived as an
- Euler–Maruyama methodIn Itô calculus, the Euler–Maruyama method (also simply called the Euler method) is a meth
- EuLispEuLisp is a statically and dynamically scoped Lisp dialect developed by a loose formation
- Euphoria (programming language)Imperative, procedural programming language
- Europe India GatewaySubmarine telecommunications cable system
- European Audiovisual ObservatoryInternational statistical organization
- European Conference of Postal and Telecommunications AdministrationsEuropean regulatory agency umbrella organization
- European Conference on Computer VisionComputer-vision conference held in even years
- European Digital RightsInternational advocacy group
- European High-Performance Computing Joint UndertakingPublic-private partnership in the EU
- European Union Agency for CybersecurityAgency of the European Union
- European Union IBM competition casesOn July 26, 2010, the European Commission announced two separate antitrust investigations
- EuropolEuropean Union law enforcement agency
- EuroSTAR ConferenceThe EuroSTAR Conference is the largest gathering of European software testing professional
- EUV lithographyLithography using 13.5 nm UV light
- Evaluation strategyProgramming language evaluation rules
- Evdevevdev (short for 'event device') is a generic input event interface in the Linux kernel an
- Evelyn AswadEvelyn Mary Aswad is an American legal scholar and the Herman G. Kaiser Chair in Internati
- Event (computing)Computing state associated with a point in time
- Event calculusLanguage for reasoning and representing events
- Event partitioningSystems analysis technique
- Event-driven programmingComputer programming paradigm
- Event-driven SOAEvent-driven SOA is a form of service-oriented architecture (SOA), combining the intellige
- EvercookieJavaScript application programming interface
- EverlaneAmerican clothing retailer
- Everything is a fileUnix philosophy
- Evil maid attackType of computer security breach
- Evil twin (wireless networks)Method used to facilitate phishing
- Evolutionary algorithmSubset of evolutionary computation
- Evolutionary computationTrial and error problem solvers with a metaheuristic or stochastic optimization character
- Evolved High Speed Packet AccessEnhanced 3G mobile telecommunications standard
- Exact coverPartition into subsets from a given family
- Exception handlingProgramming language construct for special conditions
- Exception handling syntaxKeywords provided by a programming language
- Exchange ActiveSyncProprietary protocol
- Exec ShieldProject aiming to reduce the risk of attacks on Linux systems
- ExecutableData that causes a computer to follow indicated instructions
- Executable UMLSoftware development method and a highly abstract software language
- Execute instructionIn a computer instruction set architecture (ISA), an execute instruction is a machine lang
- Execution (computing)Performing the actions encoded in a computer program
- Executive Order 12333Executive Order 12333, signed on December 4, 1981 by U.S. President Ronald Reagan, was an
- ExFATFlash file system
- ExifMetadata standard in digital media
- Existential risk from artificial intelligenceHypothesized risk to human existence
- Exit statusInteger number that is made available to the parent of a terminated process
- Expander codeIn coding theory, expander codes form a class of error-correcting codes that are construct
- Expansion cardCircuit board for connecting to a computer system to add functionality
- Explainable artificial intelligenceAI whose outputs can be understood by humans
- Explicit Congestion NotificationExtension to the Internet Protocol to signal network congestion
- Exploit (computer security)Method of attack on computer systems
- Exploit kitCollection of security exploit tools
- Exponential objectIn mathematics, specifically in category theory, an exponential object or map object is th
- Exponential treeAn exponential tree is a type of search tree where the number of children of its nodes dec
- ExpressCardSpecification for expansion and memory cards
- Expression (computer science)Syntactic entity in a programming language with a determinable value
- Expression-oriented programming languageAn expression-oriented programming language is a programming language in which every (or n
- Expressive power (computer science)In computer science, the expressive power (also called expressiveness or expressivity) of
- Ext4Journaling file system for Linux
- Extended ASCIINickname for 8-bit ASCII-derived character sets
- Extended Backus–Naur formFamily of metasyntax notations
- Extended boot recordSubsidiary partition table in the MBR partitioning scheme
- Extended Copy ProtectionCopy protection rootkit by Sony BMG
- Extended precisionFloating-point number formats
- Extended Validation CertificateX.509 public key certificate
- ExtensibilityMeasure of the capability and required effort to extend a given system's functionality
- Extensible Storage EngineMicrosoft embedded database engine
- Extension Mechanisms for DNSSpecification for Domain Name System
- External Data RepresentationExternal Data Representation (XDR) is a standard data serialization format, for uses such
- Exton, PennsylvaniaExton is a census-designated place (CDP) in West Whiteland Township in Chester County, Pen
- Extract, transform, loadProcedure in computing
- ExtraTorrentExtraTorrent (commonly abbreviated ET) was an online index of digital content of entertain
- Extreme programmingSoftware development methodology
- Extreme programming practicesSoftware development methodology
- EXtremeDBEmbedded database management system
- ExynosFamily of ARM based system-on-a-chips made by Samsung
- Eye patternOscilloscope display of a digital data signal