The list of information technology acronyms and abbreviations.

All information technology related acronyms and abbreviations.

25
DISA:
Defense Information Systems Agency(Computer Security)
25
MIB:
Management Information Base(Computer Security, Computer)
24
FEMA:
Federal Emergency Management Agency(Evacuation, Disaster)
23
PDF:
Portable Document Format(Adobe, Document processing, Format)
23
CORBA:
Common Object Request Broker Architecture(Industrial networking)
23
DNS:
Domain Name System(Computer network, Web development, Printing)
22
WWW:
World Wide Web(Dictionary, Web development, Computers)
21
SIP:
Session Initiation Protocol(Protocol, Network Protocol, Data Transfer)
20
OSI:
Open Systems Interconnection(Computer technology, Trade)
20
RF:
Radio Frequency(Radio, Meterology, Energy)
19
PSTN:
Public Switched Telephone Network(Satellite Communications, PHONE)
19
OASIS:
Organization for the Advancement of Structured Information Standards
18
ISO:
International Standards Organization(Accountancy, Computer technology)
18
EDI:
Electronic Data Interchange(Supply chain, CORPORATE, PHONE)
18
ITU:
International Telecommunication Union(STANDARDS, United Nations, PHONE)
17
IANA:
Internet Assigned Numbers Authority(Computer technology, Computers)
17
GUI:
Graphical User Interface(Web development, Printing, Computer technology)
17
ISP:
Internet Service Provider(Computer network, Wireless networking)
17
TCP:
Transmission Control Protocol(Transport Layer, Switching)
16
FDDI:
Fiber Distributed Data Interface(Microsoft Windows, Network Protocol)
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ChicagoSmart Define. 2018. "information technology" http://smartdefine.org/information_technology/abbreviations/r (accessed September 23, 2026).
HarvardSmart Define 2018, information technology, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/information_technology/abbreviations/r>.
MLASmart Define. "information technology" 18 January 2018. Web. 23 September 2026. <http://smartdefine.org/information_technology/abbreviations/r>