| DP | Data Processing | In English | → Data |
| DP | Data Processor | In English | → Hardware → Data |
| DP&S | Data Processing and Software | In English | → Software → Data |
| DP&SS | Data Processing and Software Subsystem | In English | → Software → Data |
| DPA | Data Processing Assembly | In English | → Data |
| DPA | Differential Power Analysis | In English | → Hardware |
| DPC | Data Processing Center | In English | → Data |
| DPD | Data Procurement Document | In English | → Data |
| DPI | Dots Per Inch | In English | → Peripheral devices → Graphic industries, printing, publishing |
| DPP | DTD (Document Type Definition) Pre-processor Parser | In English | → Data → Document processing |
| DPS | Digital Processing System | In English | → Computer-based techniques |
| DPS | Data Processing and Software | In English | → Software → Data |
| DPS | Digital Product Synthesis | In English | |
| DPSD | Data Processing Systems Division | In English | → Software → Data |
| DPSS | Data Processing and Software Subsystem | In English | → Software → Data |
| DPSS | Data Processing Software System | In English | → Software → Data |
| DPSS | Data Processing Services Subsystem | In English | → Data |
| DPU | Digital Processing Unit | In English | → Hardware |
| DPU | Data Processing Unit | In English | → Software → Data |
| DR | Data Register | In English | → Data |
| DR | Data Requirement | In English | → Data |
| DR | Data Requester | In English | → Data |
| DR&A | Data Requirements and Analysis | In English | → Data |
| DRACULA | Dynamic Route Assignment Combining User Learning and Microsimulation | In English | → Computer simulation → Transport and postal services |
| DRAM | Dynamic Random Access Memory | In English | → Memories |
| DRAT | Data Requirements Analysis Tool | In English | → Data |
| DRC | Data Reduction Center | In English | → Data |
| DRI | Data Rate Indicator | In English | → Data |
| DRK | Display Request Keyboard | In English | → Hardware |
| DRM | Digital Rights Management = GDN | Gestion Numérique des Droits | In French |
In English | → Document processing → Industrial property → Artistic property |
| DRR | Data Recorder or Reproducer | In English | → Data |
| DRS | Data Recording System | In English | → Data |
| DRS | Data Relay Station | In English | → Data → Telecommunications |
| DRS | Data Relay Satellite | In English | → Data → Spaceflight engineering, astronautics |
| DRSS | Data Relay Satellite System | In English | → Data → Spaceflight engineering, astronautics |
| DRT | Document Related Technologies | In English | → Document processing |
| DS | Data Storage | In English | → Data |
| DS&R | Data Storage and Retrieval | In English | → Data |
| DSAD | Data Systems and Analysis Directorate | In English | → Data → Maintenance and logistics |
| DSC | Data Separator Card | In English | → Data |
| DSCIM | Display System Computer Input Multiplexer | In English | → Hardware → Human-computer interaction |
| DSCN | Design and Simulator Computation Network | In English | |
| DSCP | Differentiated Services Code Point | In English | → Networks, communication → Telecommunications |
| DSCU | Digital Computer Switching Unit | In English | → Hardware |
| DSDL | Document Schema Definition Languages | In English | → Data |
| DSDU | Data Storage Distribution Unit | In English | → Data |
| DSE | Data Storage Equipment | In English | → Hardware → Data |
| DSE | Data Storage Encoder | In English | → Data |
| DSEA | Data Storage Electronics Assembly | In English | → Data → Electronics |
| DSI | Direction des Systèmes d’Information | In French | |
| DSI | Direction des Systèmes d'Information | In French | → Telecommunications |
| DSL | Domain-Specific Language | In English | → Programming languages |
| DSL | Digital Subscriber Line | In English | → Networks, communication |
| DSLAM | Digital Subscriber Line Access Multiplexer | In English | → Networks, communication → Telecommunications |
| DSM | Data System(s) Modernization | In English | → Data |
| DSN | Data Steering Network | In English | → Data |
| DSN | Digital Switching Network | In English | → Networks, communication |
| DSP | Digital Signal Processing | In English | → Computer-based techniques → Telecommunications |
| DSR | Data Storage and Retrieval | In English | → Data → Maintenance and logistics |
| DSS | Data Support System | In English | → Data |
| DSSSL | Document Style Semantics and Specification Language | In English | → Programming languages → Document processing → Semiotics |
| DTA | Digital Terminals & Access | In English | → Human-computer interaction → Telecommunications |
| DTCW | Data Transfer Command Word | In English | → Data |
| DTD | Document Type Description | In English | → Programming languages → Data → Document processing |
| DTD | Document Type Definition | In English | → Programming languages → Document processing |
| DTE | Data Terminal Equipment | In English | → Data → Telecommunications |
| DTE | Data Transmission Equipment | In English | → Data → Telecommunications |
| DTI | Direction des Transmissions et de l'Informatique | In French | → Telecommunications |
| DTS | Data Transfer System | In English | → Data |
| DTS | Data Transmission System | In English | → Data → Telecommunications |
| DTSL | Data Transfer Systems Laboratory | In English | → Research institutes → Data → Telecommunications |
| DTVC | Data Transmission and Verification Converter | In English | → Data → Telecommunications |
| DTVC | Digital Transmission and Verification Converter | In English | → Telecommunications |
| DU | Display Unit | In English | → Human-computer interaction |
| DUNS | Data Universal Numbering System | In English | → Data |
| DVD | Digital Versatile Disk | In English | → Hardware |
| DWDM | Dense Wavelength Division Multiplexing | In English | → Networks, communication → Telecommunications |
| DXF | Drawing eXchange Format | In French | → Data → Graphical processing → Image processing |
| E&DSG | Electro-Optical and Data Systems Group | In English | → Data → Electrical engineering |
| e-RRA | e-Rapid Report Application (www.rapidreport.fr) | In English | → Knowledge management |
| E@I | Esperanto ĉe Interreto | In Esperanto | → Networks, communication → Organizations and associations → Telecommunications |
| EACE | European Association for Cognitive Ergonomics (www.eace.info) | In English | → Associations → Human-computer interaction |
| EACE | European Association of Cognitive Ergonomics (www.eace.info) | In English | → Associations → Human-computer interaction |
| EAD | Encoded Archival Description | In English | → Libraries → Data |
| EAI | Enterprise Application Integration | In English | → Software |
| EAROM | Electrically Alterable Read-Only Memory | In English | → Memories |
| EBC | Emulated Buffer Computer | In English | → Hardware |
| EBCDC | Extended Binary-Coded Decimal | In English | → Data |
| EBCDIC | Extended Binary Coded Decimal Interchange Code | In English | |
| EBCDIC | Extended Data Coded Decimal Interchange Code | In English | → Data |
| EBOS | E-Business Operating System | In English | → Trade → Telecommunications |
| EBV | Effective Boolean Value | In English | |
| ebXML | Electronic Business using eXtensible Markup Language | In English | → Programming languages → Data |
| EC | Experiment Computer | In English | → Hardware |
| ECA | Electronic Computer Assembly | In English | → Electronics |
| ECAS | Experiment Computer Application Software | In English | |
| ECCAP | Electromagnetic Compatibility Computer Analysis Proposal | In English | → Electronics |
| ECDU | Electronic Coupling Display Unit | In English | → Human-computer interaction |
| ECI | Enterprise Content Integration | In English | → Document processing → Knowledge management |
| ECIS | European Conference on Information Systems | In English | → Telecommunications |
| ECL | Electronic Circuit Logic | In English | → Electronics |
| ECM | Entreprise Content Management | In English | → Document processing → Knowledge management |
| ECM | Enterprise Content Management | In English | → Data → Knowledge management |
| ECMA | European Computer Manufacturers Association | In English | → Hardware → Organizations and associations |
| ECN | Explicit Congestion Notification | In English | → Networks, communication → Telecommunications |
| ECOS | Experiment Computer Operating System | In English | → Operating systems |
| ECP | Explicitly Coded Program | In English | → Software |
| ECSS | Extendable Computer System Simulator | In English | → Computer simulation |
| EDA | Electronic Display Assembly | In English | → Human-computer interaction → Electronics |
| EDC | EROS Data Center | In English | → Data |
| EDDL | Electronic Device Description Language | In English | → Computer architecture → Hardware → Electronics |
| EDF | Engineering Data File | In English | → Data → Engineering, technology |
| EDHEC | École Des Hautes Études en Gestion, Informatique et Communication | In French | → Higher education, universities → Economics |
| EDI | Échange de Données Informatisées | In French | → Data |
| EDI | Electronic Data Interchange | In English | → Data → Networks, communication |
| EDIFACT | Electronic Data Interchange for Administration, Commerce and Trade | In English | → Data → Networks, communication → Trade → Public administration, government |
| EDM | Electronic Document Management = GED | Gestion Électronique des Documents | In French = GED | Gerenciamento Eletrônico de Documentos | In Portuguese = GED | Gestão Electrónica de Documentos | In Portuguese |
In English | → Document processing → Knowledge management → Libraries |
| EDM | Entity Data Model | In English | → Data |
| EDMS | Electronic Data Management System | In English | → Data |
| EDMS | Electronic Document Management Systems | In English | → Document processing → Knowledge management → Libraries |
| EDP | Embedded Data Processor | In English | → Hardware → Data |
| EDP | Electronic Data Processing | In English | → Computer-based techniques |
| EDPC | Electronic Data Processing Center | In English | → Data |
| EDPE | Electronic Data Processing Equipment | In English | → Data |
| EDPL | Engineering Development Processor Laboratory | In English | → Hardware |
| EDPM | Electronic Data Processing Machine | In English | → Hardware → Data |
| EDRI | European Digital Rights | In English | → Artistic property |
| EDRS | European Data Relay Satellite | In English | → Data → Spaceflight engineering, astronautics → Telecommunications |
| EDS | Electronic Data Systems | In English | → Data → Knowledge management |
| EDTS | Electronic Data Transfer System | In English | → Data → Networks, communication |
| EDV | Elektronische Datenverarbeitung | In German | → Data → Computer-based techniques |
| EE | Empire Earth | In English | → Software → Entertainment |
| EEPROM | Electrically Erasable Programmable Read-Only Memory | In English | → Memories |
| EF | Expedited Forwarding | In English | → Networks, communication → Telecommunications |
| EFCI | École Francaise de Commerce International et d'Informatique | In French | → Economics → Higher education, universities |
| EGC | Experiment Ground Computer | In English | → Hardware |
| EGDF | European Games Developer Federation (www.egdf.eu) | In English | → Organizations and associations → Software → Entertainment |
| EGDF | European Game Developer Federation | In English | → Organizations and associations → Software |
| EGEE | Enabling Grid for E-science in Europe | In English | → Networks, communication |
| EGI | European Grid Initiative | In English | → Networks, communication → Telecommunications |
| EHSD | Existing Hardware/Software Data Base | In English | → Hardware → Software |
| EICT | European Center for Information and Communication Technologies | In English | → Telecommunications |
| EIFA | Element Interface Functional Analysis | In English | → Human-computer interaction |
| EISTI | École Internationale des Sciences du Traitement de l'Information | In French | → Libraries → Specialized or (poly)technical colleges |
| ELCVIA | Electronic Letters on Computer Vision and Image Analysis | In English | → Serial publications, periodicals → Graphical processing → Image processing |
| ELF | EFREI Linux Formation | In French | → Organizations and associations → Operating systems |
| ELP | English Language Program | In English | → Programming languages |
| EMD | Entry Monitor Display | In English | → Human-computer interaction |
| EMDM | Enhanced Multiplexer/Demultiplexer | In English | → Telecommunications |
| EMERALD | Electronic Management Research Library Database | In English | → Libraries → Software |
| EMS | Enhav-Mastruma Sistemo |
In Esperanto | → Data → Document processing |
| EMU | Extended Memory Unit | In English | → Memories |
| EMUG | European MAP User Group | In English | → Organizations and associations → Software |
| ENCG92 | Environnement Numérique des Collèges publics des Hauts-de-Seine | In French | → Regional administration |
| EngCo | Engineering Computations | In English | → Serial publications, periodicals → Engineering, technology |
| ENIF | École Nationale d'Informatique de Fianarantsoa | In French | → Specialized or (poly)technical colleges |
| ENJMIN | École Nationale du Jeu et des Métiers Interactifs Numériques (www.enjmin.fr) | In French | → Specialized or (poly)technical colleges → Entertainment → Computer-based techniques |
| ENOB | Effective Number of Bits | In English | → Electronics |
| ENSAI | École Nationale de la Statistique et de l'Analyse de l'Information | In French | → Specialized or (poly)technical colleges → Statistics |
| ENSEIRB | École Nationale Supérieure d'Électronique, d'Informatique et de Radiocommunications de Bordeaux | In French | → Specialized or (poly)technical colleges → Electronics → Telecommunications |
| ENSIAME | École Nationale Supérieure des Ingénieurs en Informatique, Automatique, Mécanique, Énergétique, Électronique | In French | → Specialized or (poly)technical colleges → Mechanical engineering → Electronics |
| ENSIT | École Nationale des Sciences Informatiques de Tunisie | In French | → Specialized or (poly)technical colleges |
| ENT | Environnement Numérique de Travail | In French | → Software → Human-computer interaction |
| ENUM | Electronic NUmber Mapping | In English | → Networks, communication |
| EODB | End Of Data Block | In English | → Data |
| EODM | EMF Ontology Definition Metamode | In English | → Programming languages → Data → Linguistics |
| EOF | End Of File | In English | |
| EOL | End Of Line | In English | |
| EOS | Extended Operating System | In English | |
| EPHOS | European Procurement Handbook for Open Systems | In English | |
| EPIA | Encontro Português de Inteligência Artificial | In Portuguese | → Congresses → Artificial intelligence |
| EPITA | École Pour l'Informatique et les Techniques Avancées | In French | → Specialized or (poly)technical colleges |
| EPLD | Electrically Erasable Programmable Logic Device | In English | → Hardware → Electronics |
| EPROM | Erasable Programmable Read-Only Memory | In English | → Memories |
| EPSS | Electronic Proposal Submission System | In English | → Networks, communication |
| ER | Entity Resolution | In English | → Writing systems → Data |
| ERAMS | E-Resource Access and Management Services | In English | → Document processing → Knowledge management |
| ERCIM | European Research Consortium for Informatics and Mathematics (www.ercim.org) | In English | → Mathematics |
| ERCS | Extended Reference Concrete Syntaxes | In English | → Data |
| ERIS@ | European Regional Information Society Association | In English | → Associations → Telecommunications |
| ERISA | European Regional Information Society Association | In English | → Networks, communication → Associations → Telecommunications |
| ERM | Electronic Records Management | In English | → Document processing → Knowledge management |
| ESCS | Electronic Spacecraft Simulator | In English | → Computer simulation → Spaceflight engineering, astronautics |
| ESEE | Europejski System Edukacji Elearningowej | In Polish | → Education → Networks, communication |
| ESI | Electronic Signatures and Infrastructures | In English | → Computer-based techniques |
| ESI | École des Sciences de l'Information | In French | → Specialized or (poly)technical colleges |
| ESI | European Software Institute (www.esi.es) | In English | → Research institutes |
| ESIH | École Supérieure d'Infotronique d'Haïti | In French | → Specialized or (poly)technical colleges → Electronics |
| ESIS | Element Structure Information Set | In English | → Data |
| ESPRIT | European Strategic Program for Research and Development in IT | In English | → Telecommunications |
| ESRD | Engineering Software Research and Development | In English | → Software → Engineering, technology |
| ESSI | École Supérieure en Sciences Informatiques | In French | → Specialized or (poly)technical colleges |
| ESSL | Engineering and Scientific Subroutine Library | In English | → Programming languages → Mathematics and natural sciences → Engineering, technology |
| ETAPS | European Joint Conferences on Theory and Practice of Software | In English | → Software |
| ETC | Electronic Toll Collection | In English | → Computer-based techniques → Telecommunications |
| ETEBAC | Échanges Télématiques Banque/Client | In French | → Banks → Telecommunications |
| ETIS | European Transport Policy Information System | In English | → Data → Transport and postal services |
| ETL | Extract Transform Load | In English | → Data |
| EWG | Eiffel Wrapper Generator (http://ewg.sourceforge.net) | In English | → Software |
| EWG | European Wholesale Group (www.ewg-group.com) | In English | → Hardware |