# Lijst van afkortingen in de ICT

Dit is een lijst van afkortingen die in de ICT gebruikt worden.

## A

| Afkorting | Betekenis(sen) |
| A | ampère |
| A2DP | Advanced Audio Distribution Profile |
| AA of A.A. | Anti-aliasing; Auto-answer |
| ABR | Available Bit Rate; Area Border Router |
| AC | alternating current (Wisselstroom) |
| ACD | Automatic Call Distribution (telefonie) |
| ADC | analog-to-digital converter; Apple Display Connector |
| ADPCM | adaptive differential pulse-code modulation |
| ADSL | asymmetric digital subscriber line |
| ADFS | Active Directory Federation Services |
| AES | Advanced Encryption Standard |
| AI | artificiële intelligentie |
| AM | amplitudemodulatie |
| ANSI | American National Standards Institute |
| AOC | Advice Of Charge |
| API | application programming interface |
| APON | ATM Passive Optical Network |
| ARP | address resolution protocol |
| ASCII | American Standard Code for Information Interchange |
| ATM | Adobe Type Manager; asynchronous transfer mode |

## B

| Afkorting | Betekenis(sen) |
| BBS | bulletin board system |
| Bcc. | blind carbon copy |
| BGP | Border Gateway Protocol |
| BIOS | basic input/output system |
| bit | binary digit |
| BRA | Basic Rate Access |
| BRI | Basic Rate Interface |
| BSoD | Blue screen of death |

## C

| Afkorting | Betekenis(sen) |
| C7 | Common Channel Signalling System nr. 7 |
| CBR | Constant Bit-Rate |
| cc | carbon copy, copy conform (NB: ondanks de huidige spelling van het woord kopie met een k.) |
| CCITT | Comité Consultatif International Télégraphique et Téléphonique |
| CCS7 | Common Channel Signalling System nr. 7 |
| cd | compact disc |
| CIFS | Common Internet File System |
| codec | coder/decoder |
| COIN | COmmon INfrastructure, vereniging van Nederlandse telecomaanbieders |
| COLT | City of London Telecom Group |
| CPU | central processing unit (in games vaak gebruikt om een computergestuurde speler aan te duiden) |
| CRM | customer relationship management |
| CRTC | Canadian Radio-television and Telecommunications Commission |
| CSMA/CA | Carrier Sense Multiple Access met Collision Avoidance |
| cve | centrale verwerkingseenheid |

## D

| Afkorting | Betekenis(sen) |
| DAB | Digital Audio Broadcasting |
| DAC | digital-to-analog convertor |
| DAS | Direct-attached storage |
| DDOS | Distributed Denial of Service Attack |
| DHCP | Dynamic Host Configuration Protocol |
| DMZ | Demilitarized zone |
| DNS | Domain Name System |
| DOS | Disk Operating System |
| DPCM | differentiële pulscodemodulatie |
| DSL | digital subscriber line |
| DSLAM | Digital Subscriber Line Access Multiplexer |
| DSP | digitale signaalprocessor of digital signal processing |
| dtp | desktoppublishing |
| dvd | digital versatile disc |

## E

| Afkorting | Betekenis(sen) |
| E1 | Europees, 1e orde |
| ENIAC | Electronic Numerical Integrator And Calculator |
| EPD | Elektronisch patiëntendossier |
| EPROM | erasable programmable read-only memory |
| ERP(S) | enterprise resource planning (system) |
| ETSI | European Telecommunication Standardisation Institute (Europees Telecommunicatie en Standaardisatie Instituut) |
| EXIN | EXamenINstituut |

## F

| Afkorting | Betekenis(sen) |
| F | farad |
| FAB | functioneel applicatiebeheer |
| FAT | Field Acceptance Test; File Allocation Table |
| fax | telefacsimile |
| FF | FireFox (internetbrowser); Fast Forward (audio/video: snel vooruit spoelen, vaak >>) |
| FIST | Forum Interconnectie en Speciale Toegang |
| FM | frequentiemodulatie |
| FSK | Frequency Shift Keying |
| FTP | file transfer protocol |

## G

| Afkorting | Betekenis(sen) |
| GB | gigabyte |
| GPRS | general packet radio service |
| gps | global positioning system |
| gsm | global system for mobile communications / Groupe Spéciale Mobile |
| GUI | graphical user interface (grafische gebruikersomgeving) |

## H

| Afkorting | Betekenis(sen) |
| H | henry |
| hd | high definition |
| HDSL | High-speed Digital Subscriber Line |
| HP | Hewlett Packard |
| HTML | HyperText Markup Language |
| HTTP | HyperText Transfer Protocol |
| HTTPS | HyperText Transfer Protocol Secure |
| Hz | hertz |

## I

| Afkorting | Betekenis(sen) |
| IC | integrated circuit |
| ICMP | Internet Control Message Protocol |
| ICT | informatie- en communicatietechnologie |
| IE | Internet Explorer |
| IETF | Internet Engineering Task Force |
| IMEI | international mobile equipment identity |
| info | informatie |
| IOT, IoT | Internet of Things |
| IP | internetprotocol |
| IRC | Internet Relay Chat |
| ISDN | integrated services digital network |
| ISO | International Organization for Standardization |
| IT | informatietechnologie |
| ITU | International Telecommunication Union |

## J

| Afkorting | Betekenis(sen) |
| JDBC | Java DataBase Connectivity |
| JPEG | Joint Photographic Experts Group |
| JS | JavaScript |

## K

| Afkorting | Betekenis(sen) |
| kB | kilobyte |
| kHz | kilohertz |
| kJ | kilojoule |
| kW | kilowatt |
| kWh | kilowattuur |

## L

| Afkorting | Betekenis(sen) |
| LAN | local area network - netwerk tussen computers |
| lcd | liquid-crystal display |
| led | light-emitting diode |

## M

| Afkorting | Betekenis(sen) |
| MAC | Media Access Control |
| Mac | Apple Macintosh |
| Mb | megabit |
| MB | megabyte (8 Mb) |
| Mbit (Mb) | megabit |
| MER | Main Equipment Room |
| MHz | megahertz |
| modem | modulator-demodulator |
| MOSFET | metal-oxide semiconductor field-effect transistor |
| MPEG | Moving Picture Experts Group |
| MS | Microsoft |
| MSN | Microsoft Network |
| MTBF | Mean Time Between Failures |
| MTTR | Mean Time To Repair |

## N

| Afkorting | Betekenis(sen) |
| NAK | negative acknowledgment; non-acknowledged |
| NAS | Network-attached storage |
| NCSC | Nationaal Cyber Security Centrum |
| nm | nanometer |
| NTP | Network Time Protocol |

## O

| Afkorting | Betekenis(sen) |
| Ω | ohm |
| ODBC | Open DataBase Connectivity |
| OPTA | Onafhankelijke Post en Telecommunicatie Autoriteit |
| OS | operating system |
| OSI | Open Systems Interconnection |
| OSPF | Open Shortest Path First |

## P

| Afkorting | Betekenis(sen) |
| PB | petabyte |
| pc | personal computer |
| PCM | pulscodemodulatie |
| PDF | portable document format |
| PE | Preinstalled Environment |
| PHP | PHP: Hypertext Preprocessor |
| PiB | pebibyte |
| pin | persoonlijk identificatienummer |
| pm | picometer |
| POP | post office protocol |
| POTS | Publicly Operated Telephony System |
| PRA | Primary Rate Access |
| PRBS | Pseudo Random Binary Sequence |
| PRI | Primary Rate Interface |
| PRIS | Parkeer Route Informatie Systeem |
| PSK | Phase Shift Keying |
| PSTN | Public Switched Telephone Network |
| P.T.T. | Posterijen, Telegrafie, Telefonie |
| PVC | permanent virtual channel; permanent virtual connection |

## Q

| Afkorting | Betekenis(sen) |
| QAM | Quadrature Amplitude Modulation |
| QoS | Quality of Service |
| QR | Quick Response (QR-code) |

## R

| Afkorting | Betekenis(sen) |
| RADIUS | remote authentication dial-in user service |
| RAID | redundant array of independent disks; redundant array of inexpensive disks |
| RAM | random-access memory |
| RARP | reverse address resolution protocol |
| RC | radio control |
| RDF | Radio Direction Finder |
| RDS | radio data system |
| REKAM | Stichting Regionale Kabeltelevisie Midden-Holland |
| RGB | Rood-Groen-Blauw |
| RIP | Routing Information Protocol |
| ROM | read-only memory |
| RSA | een encryptiealgoritme, ontworpen door Ron Rivest, Adi Shamir en Len Adleman |
| RSI | Repetitive strain injury |
| RTC | Realtimeklok (Engels: real-time clock) |
| RTOS | realtimebesturingssysteem (Engels: real-time operating system) |

## S

| Afkorting | Betekenis(sen) |
| s of sec | seconde |
| SAN | Storage area network |
| SCOR | Supply chain operations reference - model |
| SDH | synchronous digital hierarchy |
| SDI | Single Document Interface |
| SE | software engineering |
| SER | Satellite Equipment Room or Secondary Equipment Room |
| SI | Système International |
| SIS | Sociaal Informatiesysteem |
| SLA | service level agreement |
| SMB | Server Message Block |
| SMTP | Simple Mail Transfer Protocol |
| SNMP | Simple Network Management Protocol |
| SOA | service oriented architecture |
| Sogeti | Société pour la gestion de l'entreprise et traitement de l'information |
| SP2 | Service Pack 2 |
| SQL | Structured Query Language |
| SS | signaling system |
| SS7 | Common Channel Signalling System nr. 7 |
| SSO | Single sign-on |
| STP | Shielded Twisted Pair |
| SVC | switched virtual channel; switched virtual connection |
| Sysop | system operator |

## T

| Afkorting | Betekenis(sen) |
| TAB | technisch applicatiebeheer |
| TAN-code | Transactie Autorisatie Nummer |
| TB | technisch beheer; terabyte |
| TCP | Transmission Control Protocol |
| TDI | Tabbed Document Interface |
| tel. | telefoon |
| tft | thin-film transistor |
| TiB | tebibyte |
| TMAP | Test Management Approach |
| tv | televisie |

## U

| Afkorting | Betekenis(sen) |
| UBR | Unspecified Bit-Rate |
| UDP | User Datagram Protocol |
| UMA | Upper Memory Area |
| UMB | Upper Memory Blocks |
| UMTS | universal mobile telecommunications system |
| URL | uniform resource locator |
| USB | universal serial bus |
| UTP | Unshielded Twisted Pair |

## V

| Afkorting | Betekenis(sen) |
| V | volt |
| VBA | Visual Basic for Applications |
| VBR | Variable Bit-Rate |
| VC | virtual channel; virtual connection |
| Veron | Vereniging voor Experimenteel Radio Onderzoek Nederland |
| VHDSL | Very High-speed Digital Subscriber Line |
| VIVO | Video In Video Out |
| VLAN | Virtual Local Area Network |
| VoIP | Voice over IP (Voice over Internet Protocol) |
| VRZA | Vereniging van Radiozendamateurs |

## W

| Afkorting | Betekenis(sen) |
| W | watt |
| WAN | wide area network |
| WLAN | wireless local area network |
| www | world-wide web |
| wysiwyg | What you see is what you get |

## X

| Afkorting | Betekenis(sen) |
| XHTML | Extensible HyperText Markup Language |
| XML | Extensible Markup Language |

## Y

| Afkorting | Betekenis(sen) |

## Z

| Afkorting | Betekenis(sen) |
| ZB | zettabyte |