Computer/System Terms
Acronyms - G
- GB - Gigabyte
- GBIC - gigabit interface converter
- Gbps - Gigabits per second
- GHz - gigahertz (one billion cycles per second)
- GI - guard interval
- GiB - Gigabinarybytes (Gibibytes)
- GIF - Graphic(s) Interchange Format
- GigE - Gigabit Ethernet Local Area Network
- GLBP - Gateway Load Balancing Protocol
- GML - Generalized Markup Language
- GMR - giant magneto-resistive heads
- GPF - General Protection Fault
- GPRs - general purpose registers
- GPU - graphics processing unit
- GPU - Graphical Processing Unit
- GRE - Generic Routing Encapsulation
- gTLD - generic Top Level Domain
- GUI - graphical/graphic user interface
- GUID - globally unique identifier
Acronyms - H
- HA - High Availability
- HA - Home Agent
- HAL - Hardware Abstraction Layer
- HCL - Hardware Compatability List
- HD DVD - high-density digital versatile disc
- HDA - head disk assembly
- HDA - High Definition Audio
- HDD - hard disk drive
- HDLC - High-level Data Link Control
- HDMI - High Definition Multimedia Interface
- HDR - High Dynamic Range
- HDSL - High-bit-rate digital subscriber line
- HERs - hard error rates
- HFC - hybrid fiber/coax (coaxial cable) network
- HFS - Hierarchical File System
- HID - human interface device
- HighMAT - High-performance Media Access Technology
- HLF - High-level (or logical) formatting
- HMA - high memory area
- HMI - human-machine interface
- HPA - Host Protected Area
- HPC - heads per cylinder
- HSA - Heterogeneous Systems Architecture
- HSB - hue, saturation, brightness (colors)
- HSDPA - High-Speed Downlink Packet Access (wireless broadband)
- HSM - hierarchical storage management
- HSPA - high speed packet access (mobile broadband)
- HSSI - High-Speed Serial Interface
- HT - Hyper-Threading Technology (instruction processing)
- HTML - HyperText Markup Language
- HTTP - HyperText Transfer Protocol
- Hz - Hertz
Acronyms - I
- IA-32 - Intel Architecture, 32 bit
- IA-64 - Intel Architecture, 64 bit
- IaaS - Infrastructure-as-a-Service
- IC - integrated circuit
- ICA - Independent Computing Architecture
- ICCID - Integrated Circuit Card Identification
- ICE - Interactive Connectivity Establishment
- ICH - Input/Ouput controller Hub
- ICMP - Internet Control Management Protocol
- ICMP - Internet Control Message Protocol
- ICS - industrial control system
- ICT - information and communication technology
- ICV - integrity check value
- ID - identification/identity/identifier
- IDE - Integrated Device/Drive Electronics
- iDEN - Integrated Digitally Enhanced Network
- IDL - Interface Definition Language
- IdM - identity management (automated access)
- IED - intelligent electronic device
- IED - identification error detection (DVD formatting)
- IGD - integrated graphics device (video configuration)
- IGD DVMT - integrated graphics device Dynamic Video Memory Technology (video configuration)
- IGMP - Internet Group Management Protocol
- IGP - Interior Gateway Protocol
- IGRP - Interior Gateway Routing Protocol
- IIN - Issuer Identification Number
- IM - Instant Message/Messenger/Messaging
- IMA-ADPCM - Interactive Multimedia Association - Adaptive Differential Pulse Code Modulation (data compression)
- IMAP - Internet Message Access Protocol
- IMAPI - image mastering application program interface (temporary memory storage)
- IMEI - International Mobile Equipment Identity
- IMSI - International Mobile Subscriber Identity
- I/O - input/output
- IOH - Input/Output Hub (PC socket)
- iOS - iPhone/iPod/iPad (mobile) Operating System
- IP - Instruction Pointer
- IP - Internet Protocol
- IPC - interprocess communication (system architecture)
- IPL - initial program load (memory start process)
- IPL ROM - initial program load read-only memory (network card)
- IPTV - Internet Protocol Television
- IPX - Internetwork Packet Exchange
- IPX/SPX - Internetwork Packet Exchange/Sequenced Packet Exchange (data transmission)
- IR - infrared
- IRC - Internet Relay Chat
- IRQ - Interrupt Request (bus communication signal)
- iSCSI - Internet Small Computer System Interface
- ISDN - Integrated Services Digital Network
- IS-IS - Intermediate System to Intermediate System
- ISN - initial sequence number
- ISP - Internet service provider
- IT - Information Technology
- IVP - integrity verification procedure