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IT Abbreviations & Acronyms: Comprehensive Glossary

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There are currently 144 acronyms in this directory beginning with the letter I.
I
I/O
Input & Output
I/O Contention
Input/Output Contention
I/O Fencing
Input/Output Fencing
I&T
Integration Testing or Integration and Testing
IA
Internal Audit
IaaS
Infrastructure-as-a-Service
IAB
Internet Advertising Bureau
IAM
Identity and Access Management
IANA
Internet Assigned Numbers Authority
IAO
Information Awareness Office
IAP
Internet Access Provider
IAX
Inter-Asterisk Exchange Protocol
IBM
International Business Machines
IBM TSM
Ibm Tivoli Storage Manager
IBP
Integrated Business Planning
IC
Integrated Circuit
ICANN
Internet Corporation For Assigned Names and Numbers
ICE
Information and Content Exchange
IcM
Incident Management
ICM file
Image Color Matching File
ICMP
Internet Control Message Protocol
ICMP sweep
Ping Sweep
ICP
Internet Commerce Provider
ICR
Intelligent Character Recognition
ICT
Information and Communications Technology
ID
Intrusion Detection
IDaaS
Identity-as-a-Service
IDE
Integrated Development Environment
IDEA
International Data Encryption Algorithm
IDEF
Integrated Definition
iDEN
Integrated Digital Enhanced Network
IDF
Interface Device
IDIS
Integrated Disbursement and Information System
IDL
Interface Definition Language
IDoc
Intermediate Document
IDS
Intrusion Detection System
IE
Internet Explorer
IEAK
Internet Explorer Administration Kit
IEC
International Electrotechnical Commission
IEEE
Institute Of Electrical and Electronics Engineers
IETF
Internet Engineering Task Force
iFCP
Internet Fibre Channel Protocol
IG
Internet Gateway
IGMP
Internet Group Management Protocol
IGP
Interior Gateway Protocol
iHT2
Institute For Health Technology Transformation
IIOP
Internet Inter-orb Protocol
IIS
Internet Information Server
IKE
Internet Key Exchange
ILEC
Incumbent Local Exchange Carrier
ILM
Information Life Cycle Management
IM
Infrastructure Management
IMA
Inverse Multiplexing Over Atm
IMAP
Internet Message Access Protocol
IMCS
Inventory Management and Control System
IMEI
International Mobile Equipment Identity
IMS
Intelligent Manufacturing Systems
IMT
International Mobile Telephone
IMTI
Integrated Manufacturing Technology Initiative
IN
Intelligent Network
Inc
Incident
Intel VT
Virtualization Technology
InterNIC
Internet Network Information Center
IOPS
Input/Output Operations Per Second
IOS
Input/Output Supervisor
IoT
Internet Of Things
IoT botnet
Internet Of Things Botnet
IoT security
Internet Of Things Security
IOTP
Internet Open Trading Protocol
IOV
I/O Virtualization
IP address
Internet Protocol Address
IP core
Intellectual Property Core
IP PBX
Private Branch Exchange
IP spoofing
IP Address Forgery or A Host File Hijack
IP telephony
Internet Protocol Telephony
IPAM
Ip Address Management
IPC
Interprocess Communication
IPI
Intelligent Peripheral Interface
IPL
Initial Program Load
IPLC
International Private Leased Circuit
IPM
Intelligent Power Management
IPMI
Intelligent Platform Management Interface
IPO
Initial Public Offering
IPP
Internet Presence Provider
IPPD
Integrated Product and Process Development
IPPP
Internet Presence Provider and Promoter
IPR
Intellectual Property Rights
IPS
In-Plan Switching
IPSec
Internet Protocol Security
IPT
Integrated Product Team
IPTV
Internet Protocol Television
IPv6
Internet Protocol Version 6
IPX
Internetwork Packet Exchange
IR
Infrared Radiation
IR wireless
Infrared Wireless
IRC
Internet Relay Chat
IrDA
Infrared Data Association
IRI
Industrial Research Institute
IRIS
Internet Routing In Space
IRM
Integrated Resource Management
IRP
Incident Response Plan
IRQ
Interrupt Request
IRR
Internal Rate Of Return
IRTF
Internet Research Task Force
IRU
Indefeasible Right Of Use
IS
Information System
IS-IS
Intermediate System-To-Intermediate System Protocol
ISA
Industry Standard Architecture
ISA Server
Internet Security and Acceleration Server
ISAM
Indexed Sequential Access Method
ISAPI
Internet Server Application Program Interface
ISBN
International Standard Book Number
iSCSI
Internet Small Computer System Interface
iSCSI Target
Internet Small Computer System Interface Target
ISDN
Integrated Services Digital Network
ISE
Cisco Identity Services Engine
ISM
Information Security Management
ISMS
Information Security Management System
ISO
International Standards organization
ISO 8327
Itu X.225
ISO/IEC 24734
International Standards Organization / International Electrotechnical Commission 24734
ISP
Internet Service Provider
ISPF
Interactive System Productivity Facility
ISR G2
Cisco Integrated Service Routers Generation 2
ISRC
International Standard Recording Code
ISRS
Information Storage and Retrieval System
ISSU
In-Service Software Upgrade
ISV
Independent Software Vendor
IT
Information Technology
IT MOOSE Management
Maintain and Operate The Organization, Systems and Equipment
IT-ISAC
Information Technology Information Sharing and Analysis Center
ITA
Information Technology Agremeement
ITAA
Information Technology Association Of America
ITaaS
It-as-a-Service
ITAC
International Telework Association and Council
ITIL
Information Technology Infrastructure Library
ITS
Intelligent Transportation System
ITSM
Information Technology Service Management
ITSO
International Technical Support organization
ITSS
Information Technology Solutions Shop
ITU-T
Telecommunication Standardization Sector of the International Telecommunications Union
IV
Initialization Vector
IVR
Interactive Voice Response
IXC
Interexchange Carrier

A quick reference guide for Information Technology (IT) related acronyms and abbreviations.

As a service to IT personnel everywhere (and also for ourselves) we’ve compiled a comprehensive list of IT-related acronyms and abbreviations.

Acronyms can be pronounced as words, like NASA and UNESCO; as individual letters, like FBI, TNT, and ATM; or as both letters and words, like JPEG (pronounced JAY-peg).

Abbreviations formed from a string of initials and usually pronounced as individual letters are more specifically called initialisms or alphabetisms.

No matter how you refer to these IT-related terms, please use our quick reference guide or search TechTerms.com to help decode the world of IT abbreviations and acronyms.

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