CompTIA A+ Acronyms

ACRONYM		SPELLED OUT
AC		alternating current
ACPI		advanced configuration and power interface
ACT		activity
ADSL		asymmetrical digital subscriber line
AGP		accelerated graphics port
AMD		advanced micro devices
AMR		audio modem riser
APIPA		automatic private internet protocol addressing
APM		advanced power management
ARP		address resolution protocol
ASR		automated system recovery
AT		advanced technology
ATA		advanced technology attachment
ATAPI		advanced technology attachment packet interface
ATM		asynchronous transfer mode
ATX		advanced technology extended
BIOS		basic input/output system
BNC		Bayonet-Neill-Concelman or British Navel Connector
BRI		basic rate interface
BTX		balanced technology extended
CCD		charged coupled device
CD		compact disc
CD-ROM		compact disc-read-only memory
CD-RW		compact disc-rewritable
CDFS		compact disc files system
CMOS		complementary metal-oxide semiconductor
CNR		communication network riser
COM1		communication port 1
CPU		central processing unit
CRIMM		continuity-rambus inline memory module
CRT		cathode-ray tube
DAC		discretionary access control
DB-25		serial communications D-shell connector, 25 pins
DB-9		9 pin D shell connector
DC		direct current
DDOS		distributed denial of service
DDR		double data-rate
SDRAM		synchronous dynamic random access memory
DFS		distributed file system
DHCP		dynamic host configuration protocol
DIMM		dual inline memory module
DIN		Deutsche Industrie Norm
DIP		dual inline package
DLT		digital linear tape
DLP		digital light processing
DMA		direct memory access
DNS		domain name service or domain name server
DOS		disk operating system or denial of service
DPMS		display power management signaling
DRAM		dynamic random access memory
DSL		digital subscriber line
DVD		digital video disc or digital versatile disc
DVD-RAM		digital video disc-random access memory
DVD-ROM		digital video disc-read only memory
DVD-R		digital video disc-recordable
DVD-RW		digital video disc-rewritable
DVI		digital visual interface
ECC		error correction code
ECP		extended capabilities port
EEPROM		electrically erasable programmable read-only memory
EFS		encrypting file system
EIDE		enhanced integrated drive electronics
EISA		extended industry standard architecture
EMI		electromagnetic interference
EMP		electromagnetic pulse
EPROM		erasable programmable read-only memory
EPP		enhanced parallel port
ERD		emergency repair disk
ESD		electrostatic discharge
ESDI		enhanced small device interface
EVGA		extended video graphics adapter/array
EVDO		evolution data optimized or evolution data only
FAT		file allocation table
FAT12		12-bit file allocation table
FAT16		16-bit file allocation table
FAT32		32-bit file allocation table
FDD		floppy disk drive
FERPA		Family Educational Rights and Privacy Act
Fn		Function (referring to the function key on a laptop)
FPM		fast page-mode
FRU		field replaceable unit
FTP		file transfer protocol
FQDN		fully qualified domain name
GB		gigabyte
GDI		graphics device interface
GHz		gigahertz
GUI		graphical user interface
GPRS		general packet radio system
GSM		global system for mobile communications
HAL		hardware abstraction layer
HCL		hardware compatibility list
HDD		hard disk drive
HDMi		high definition media interface
HPFS		high performance files system
HTML		hypertext markup language
HTTP		hypertext transfer protocol
HTTPS		hypertext transfer protocol over secure sockets layer
I/O		input/output
ICMP		internet control message protocol
ICS		internet connection sharing
ICR		intelligent character recognition
IDE		integrated drive electronics
IEEE		Institute of Electrical and Electronics Engineers
IIS		Internet Information Services
IMAP		internet mail access protocol
IP		internet protocol
IPCONFIG		internet protocol configuration
IPP		internet printing protocol
IPSEC		internet protocol security
IPX		internetwork packet exchange
IPX/SPX		internetwork packet exchange/sequenced packet exchange
IR		infrared
IrDA		Infrared Data Association
IRQ		interrupt request
ISA		industry standard architecture
ISDN		integrated services digital network
ISO		Industry Standards Organization
ISP		internet service provider
KB		kilobyte
LAN		local area network
LBA		logical block addressing
LC		Lucent connector
LCD		liquid crystal display
LDAP		lightweight directory access protocol
LED		light emitting diode
LIP or LiPoly		lithium-ion polymer
Li-on		lithium-ion
LPD/LPR		line printer daemon / line printer remote
LPT		line printer terminal
LPT1		line printer terminal 1
LPX		low profile extended
LVD		low voltage differential
MAC		media access control
MAN		metropolitan area network
MAPI		messaging application programming interface
Mb		megabit
MB		megabyte
MBR		master boot record
MBSA		Microsoft Baseline Security Analyzer
MCR		multivariant curve resolution
MFD		multi-function device
MFP		multi-function product
MHz		megahertz
MicroDIMM		micro dual inline memory module
MIDI		musical instrument digital interface
MIME		multipurpose internet mail extension
MLI		multiple link interface
MMC		Microsoft management console
MMX		multimedia extensions
MP3		Moving Picture Experts Group Layer 3 Audio
MPEG		Moving Picture Experts Group
MSCONFIG		Microsoft configuration
MSDS		material safety data sheet
MUI		multilingual user interface
NAS		network-attached storage
NAT		network address translation
NetBIOS		networked basic input/output system
NFS		network file system
NIC		network interface card
NiCd		nickel cadmium
NiMH		nickel metal hydride
NLI		not logged in or natural language interface
NLX		new low-profile extended
NNTP		network news transfer protocol
NTFS		new technology files system
NTLDR		new technology loader
NWLINK		Netware Link
OCR		optical character recognition
OEM		original equipment manufacturer
OMR		optical mark recognition
OS		operating system
OSR		original equipment manufacturer service release
PAN		personal area network
PATA		parallel advanced technology attachment
PC		personal computer
PCI		peripheral component interconnect
PCIe		peripheral component interconnect express
PCIX		peripheral component interconnect extended
PCL		printer control language
PCMCIA		Personal Computer Memory Card International Association
PDA		personal digital assistant
PGA		pin grid array
PGA2		pin grid array 2
PIN		personal identification number
PKI		public key infrastructure
PnP		plug and play
POP		post office protocol
POP3		post office protocol 3
POST		power-on self test
POTS		plain old telephone service
PPP		point-to-point protocol
PPTP		point-to-point tunneling protocol
PRI		primary rate interface
PROM		programmable read-only memory
PS/2		Personal System/2 connector
PSTN		public switched telephone network
PVC		permanent virtual circuit
PXE		preboot execution environment
QoS		quality of service
RAID		redundant array of independent (or inexpensive) discs
RAM		random access memory
RAS		remote access service
RBAC		role-based access control or rule-based access control
RDRAM		RAMBUS® dynamic random access memory
RF		radio frequency
RFI		radio frequency interference
RGB		red green blue
RIMM		RAMBUS® inline memory module
RIP		routing information protocol
RIS		remote installation service
RISC		reduced instruction set computer
RJ		registered jack
RJ-11		registered jack function 11
RJ-45		registered jack function 45
RMA		returned materials authorization
ROM		read only memory
RTC		real-time clock
SAN		storage area network
SATA		serial advanced technology attachment
SC		subscription channel
SCSI		small computer system interface
SCSI ID		small computer system interface identifier
SD		card secure digital card
SDRAM		synchronous dynamic random access memory
SEC		single edge connector
SFC		system file checker
SGRAM		synchronous graphics random access memory
SIMM		single inline memory module
SMB		server message block or small to midsize business
SMTP		simple mail transport protocol
SNMP		simple network management protocol
SoDIMM		small outline dual inline memory module
SOHO		small office/home office
SP		service pack
SP1		service pack 1
SP2		service pack 2
SPDIF		Sony-Philips digital interface format
SPGA		staggered pin grid array
SPX		sequenced package exchange
SRAM		static random access memory
SSH		secure shell
SSID		service set identifier
SSL		secure sockets layer
ST		straight tip
STP		shielded twisted pair
SVGA		super video graphics array
SXGA		super extended graphics array
TB		terabyte
TCP		transmission control protocol
TCP/IP		transmission control protocol/internet protocol
TDR		time domain reflectometer
TFTP		trivial file transfer protocol
UART		universal asynchronous receiver transmitter
UDMA		ultra direct memory access
UDP		user datagram protocol
UL		Underwriter’s Laboratory
UNC		universal naming convention
UPS		uninterruptible power supply
URL		uniform resource locator
USB		universal serial bus
USMT		user state migration tool
UTP		unshielded twisted pair
UXGA		ultra extended graphics array
VESA		Video Electronics Standards Association
VFAT		virtual file allocation table
VGA		video graphics array
VoIP		voice over internet protocol
VPN		virtual private network
VRAM		video random access memory
WAN		wide area network
WAP		wireless application protocol
WEP		wired equivalent privacy
WIFI		wireless fidelity
WINS		windows internet name service
WLAN		wireless local area network
WPA		wireless protected access
WUXGA		wide ultra extended graphics array
XGA		extended graphics array
ZIF		zero-insertion-force
ZIP		zigzag inline package