* DSI = Direction des Systèmes d'Information

* DC = Data Center

* SIG = Système d'Information Géographique

* SGO = Système de Gestion Opérationnel

* SGA = Système de Gestion des Appels

* AI = Artificial Intelligence (IA = Intelligence Artificielle)

* I/O = Input/Output (E/S = Entrée/Sortie)

* ESN = Entreprise de Services du Numérique (anciennement SSII)

* SSII = Société de Services en Ingénierie Informatique

* RSSI = Responsable de la Sécurité des Systèmes d'Information

Bases de données, Informatique décisionnelle, Big Data, authentification, sécurité...

* DB = DataBase (BDD = Base De Données)

* SGBD/R/O = Système de Gestion de Bases de Données Relationnelles/Objets

* ETL = Extract Transform Load

* DMT = DataMart (MDD = Magasin De Données)

* DWH = Data WareHouse (EDD = Entrepôt De Données)

* ODS = Operational Data Store

* OLAP = OnLine Analytical Processing

* OLTP = OnLine Transaction Processing

* M/R/H/S/DOLAP = Multidimensional/Relational/Hybrid/Spatial/Desktop OLAP

* PGI = Progiciel de Gestion Intégré

* ERP = Enterprise Resource Planning

* BI = Business Intelligence

* AD = Active Directory

* SAM = Security Account Manager

* CMS = Content Management System

* CAS = Content Addressed Storage

* WORM = Write Once Read Many

* PGP = Pretty Good Privacy

Réseaux, protocoles

* Internet = InterNetwork

* IoT = Internet of Things

* ARPANET = Advanced Research Projects Agency Network

* SSH = Secure Shell

* HTTP/S = HyperText Transfer Protocol Secure

* TCP = Transfer Control Protocol

* UDP = User Datagram Protocol

* SIP = Session Initiation Protocol

* SDP = Session Description Protocol

* RTP = Real-time Transport Protocol

* RTSP = Real-Time Streaming Protocol

* IP = Internet Protocol

* NCP = Network Control Protocol

* PPP = Point to Point Protocol

* DNS = Domain Name System

* TLS = Transport Layer Security

* SSL = Secure Sockets Layer

* DTLS = Datagram TLS

* FTP/S = File Transfer Protocol Secure

* SFTP = SSH File Transfer Protocol

* NTP = Network Time Protocol

* PAN = Personal Area Network

* LAN = Local Area Network

* MAN = Metropol Area Network

* WAN = World Area Network

* MQTT = Message Queue Telemetry Transport

* WWW = World Wide Web

* SMTP = Simple Mail Transfer Protocol

* POP = Post Office Protocol

* IMAP = Internet Message Access Protocol

* UUCP = UNIX to UNIX Copy Protocol

* MTA = Mail Transfer Agent

* ARP = Address Resolution Protocol

* DHCP = Dynamic Host Configuration Protocol

* EAP = Extensible Authentication Protocol

* LDAP = Lightweight Directory Access Protocol

* OSI = Open Systems Interconnection

* NCP = Network Control Program

* IPX = Internetwork Packet Exchange

* SPX = Sequenced Packet Exchange

* SMB = Server Message Block

* CIFS = Common Internet File System

* R/TLD = Reserved Top Level Domain

* RCP = Remote Control Procedure

* NAT = Network Address Translation

* MAC = Media Access Control

* URL = Uniform Resource Locator

* URI = Uniform Resource Identifier

* LCP = Link Control Protocol

* H/SDLC = High level/Synchronous Data Link Control

* PAP = Password Authentication Protocol

* CHAP = Challenge Handshake Authentication Protocol

* VPN = Virtual Private Network

* AS = Autonomous System

* BGP = Border Gateway Protocol

* EGP = Exterior Gateway Protocol

* TTL = Time to Live

* SOA = Start of Authority

* CAS = Central Authentication Service

* SSO = Single Sign-On

* IaaS = Infrastructure as a Service

* PaaS = Platform as a Service

* SaaS = Software as a Service

Télécommunications, radiocommunications...

* Wi/Hi/Li-Fi = Wireless/High/Light Fidelity

* DSL = Digital Subscriber Line (LNA = Ligne Numérique d'Abonné)

* ISDN = Integrated Services Digital Network (RNIS = Réseau Numérique à Intégration de Services)

* A/I/RE/H/RA/S/V/SH/IDSL = Asymmetric/Reach Extended/High data rate/Symmetric/Very high speed/Single pair High speed/ISDN DSL

* HSPDA = High Speed Downlink Packet Access

* DSLAM = DSL Access Multiplexer

* FAI = Fournisseur d'Accès à Internet

* P/STN = Public Switched Telephone Network (RTC/P = Réseau Téléphonique Commuté Public)

* SDH = Synchronous Digital Hierarchy (HNS = Hiérarchie Numérique Synchrone)

* PDH = Plesiochronous Digital Hierarchy (HNP = Hiérarchie Numérique Plésiochrone)

* TNT = Télévision Numérique Terrestre

* LTE = Long Term Evolution

* GSM = Global System for Mobile

* DCS = Digital Communication System

* EDGE = Enhanced Data rates for GSM Evolution

* GPRS = General Packet Radio Services

* UMTS = Universal Mobile Telecommunications System

* WiMAX = Worldwide Interoperability for Microwave Access

* ATM = Asynchronous Transfer Mode

* OFDM = Orthogonal Frequency Division Multiplex

* HiperLAN/MAN/ACCESS = High Performance Radio LAN/MAN/Access

* DAB = Digital Audio Broadcasting

* RDS = Radio Data System

* TMC = Traffic Message Channel

* DARC = Data Radio Channel

* GPS = Global Positionning System

Langages informatiques et concepts

* XML = eXtensible Markup Language

* X/HTML = eXtensible HyperText Markup Language

* CSS = Cascading Style Sheet

* POO = Programmation Orienté Objet

* SQL = Structured Query Language

* JS = JavaScript

* PHP = PHP Hyper Preprocessor

* JSON = JavaScript Object Notation

* YAML = Yet Another Markup Language

* SVG = Scalable Vector Graphics

* K8S = Kubernetes

* AJAX = Asynchronous JavaScript And XML

* JEE = Java Enterprise Edition

* API = Application Programming Interface

* AS = ActionScript

* TS = TypeScript

* DLL = Dynamic Link Library

* VCL = Visual Component Library

* RDF = Resource Description Framework

* RelaxNG = Regular Language for XML Next Generation

* SGML = Standard Generalized Markup Language

* DSDL = Document Schema Definition Languages

* PDF = Portable Document Format

Hardware, normes, connectiques

* NAS = Network Area Storage

* USB = Universal Serial Bus

* SSD = Solid State Drive

* IDE = Integrated Drive Electronics

* LLC = Logical Link Control

* SCSI = Small Computer System Interface

* ASPI = Advanced SCSI Programming Interface

* PC = Personal Computer

* PCMCIA = PC Memory Card International Association

* ATA = Advanced Technology Attachment

* SATA = Serial ATA

* ATAPI = ATA Packet Interface

* PATA = Parallel ATA

* UATA = Ultra ATA

* EIDE = Extended IDE

* HDD = Hard Drive Disk

* CPU = Central Processing Unit (UCT = Unité Centrale de Traitement)

* GPU = Graphics Processing Unit

* TPU = Tensor Processing Unit

* TPU = Time Processing Unit

* NPU = Neural Processing Unit

* AGP = Accelerated Graphics Port

* RAM = Random Access Memory

* RAM = Random Access Machine

* CMOS = Complementary Metal Oxide Semiconductor

* TTL = Transistor-Transistor Logic

* CCD = Charge-Coupled Device (DTC = Dispositif à Transfert de Charge)

* ASIC = Application-Specific Integrated Circuit

* RISC = Reduced Instruction Set Computing

* CISC = Complex Set Instruction Computer

* VGA = Video Graphics Array

* MCGA = Multi-Color Graphics Array

* XGA = eXtended Graphics Array

* SVGA = Super VGA

* ECA = Enhanced Graphics Adapter

* CGA = Color Graphics Adapter

* MDA = Monochrome Display Adapter

* HDMI = High Definition Multimedia Interface

* DVI = Digital Visual (ou Video) Interface

* LCD = Liquid Crystal Display (ACL = Affichage à Cristaux Liquides)

* LED = Light-Emitting Diode

* OLED = Organic LED

* SM-OLED = Small Molecules OLED

* PHOLED = Phosphorescent OLED

* PLED = Polymer LED

Systèmes d'exploitation, logiciels

* OS = Operating System

* BIOS = Basic Input Output System

* UNIX = UNiplexed Information and Computing Service

* GNU = GNU's Not UNIX

* BSD = Berkeley Software Distribution

* VM = Virtual Machine

* JVM = Java VM

* GIMP = GNU Image Manipulation Program

* IE = Internet Explorer

Organisations, consortiums et normes

* IANA = Internet Assigned Numbers Authority

* ICANN = Internet Corporation for Assigned Names and Numbers

* W3C = World Wide Web Consortium

* RFC = Request For Comments

* SUS = Single UNIX Specification

* IEEE = Institute of Electronical and Electronics Engineers

* ISOC = Internet Society

* IETF = Internet Engineering Task Force

* OASIS = Organization for the Advancement of Structured Information Standards

* ISO = International Organization for Standardization (Organisation Internationale de Normalisation)

* ANSI = American National Standards Institute

* VESA = Video Electronics Standards Association

* DDWG = Digital Display Working Group

* IBM = International Business Machine

* AFNIC = Association Française pour le Nommage Internet en Coopération

* HP = Hewlett-Packard

* MS = Microsoft

* ANSSI = Agence Nationale de la Sécurité des Systèmes d'Information