Acronym / Abbreviation / Portmanteau |
Meaning |
ACK |
Acknowledge |
ACL |
Access Control List |
ADC |
Analog to Digital Converter |
ADC |
Apple Display Connector |
ADF |
Automatic Document Feeder |
ADSL |
Asymmetric Digital Subscriber Line |
AF |
Autofocus |
AGP |
Accelerated Graphics Port |
AIFF |
Audio Interchange File Format |
AIX |
Advanced Interactive Executive |
ALU |
Arithmetic Logic Unit |
ANSI |
American National Standards Institute |
API |
Application Program Interface |
APU |
Accelerated Processing Unit |
ARP |
Address Resolution Protocol |
ASCII |
American Standard Code for Information Interchange |
ASF |
Advanced Systems Format |
ASIC |
Application Specific Integrated Circuit |
ASLR |
Address Space Layout Randomization |
ASP |
Active Server Page or Application Service Provider |
ATA |
Advanced Technology Attachment |
ATM |
Asynchronous Transfer Mode |
ATX |
Advanced Technology eXtended |
AUP |
Acceptable Use Policy |
Bash |
Bourne Again SHell |
BASIC |
Beginner’s All-purpose Symbolic Instruction Code |
Bcc |
Blind Carbon Copy |
BIOS |
Basic Input/Output System |
Blob |
Binary Large Object |
BMP |
Bitmap |
BSOD |
Blue Screen of Death |
CA |
Certificate Authority |
CAD |
Computer-Aided Design |
Cc |
Carbon Copy |
CCD |
Charged Coupled Device |
CD |
Compact Disc |
CDFS |
Compact Disc File System |
CDMA |
Code Division Multiple Access |
CDN |
Content Delivery Network |
CDP |
Cisco Discovery Protocol |
CD-R |
Compact Disc Recordable |
CD-ROM |
Compact Disc Read-Only Memory |
CD-RW |
Compact Disc Re-Writable |
CGI |
Common Gateway Interface |
CIF |
Common Intermediate Format |
CISC |
Complex Instruction Set Computing |
CLOB |
Character Large Object |
CMOS |
Complementary Metal Oxide Semiconductor |
CMS |
Content Management System |
CMYK |
Cyan Magenta Yellow Black |
Codec |
coder-decoder or less commonly compressor-decompressor |
CPA |
Cost Per Action |
CPC |
Cost Per Click |
CPL |
Cost Per Lead |
CPM |
Cost Per 1,000 Impressions |
CPS |
Classroom Performance System |
CPU |
Central Processing Unit |
CRM |
Customer Relationship Management |
CRT |
Cathode Ray Tube |
CSS |
Cascading Style Sheet |
CTP |
Composite Theoretical Performance |
CTR |
Click-Through Rate |
DAC |
Digital-to-Analog Converter |
DAQ |
Data Acquisition |
DAW |
Digital Audio Workstation |
DBMS |
Database Management System |
DCIM |
Digital Camera IMages |
DDL |
Data Definition Language |
DDoS |
Dedicated Denial of Service |
DDR |
Double Data Rate |
DDR2 |
Double Data Rate 2 |
DDR3 |
Double Data Rate Type 3 |
DEST |
Destination |
DFS |
Distributed File System |
DHCP |
Dynamic Host Configuration Protocol |
DIMM |
Dual In-Line Memory Module |
DLC |
Downloadable Content |
DLL |
Dynamic Link Library |
DMA |
Direct Memory Access |
DNS |
Domain Name System |
DoS |
Denial of Service |
DOS |
Disk Operating System |
DPI |
Dots Per Inch |
DRAM |
Dynamic Random Access Memory |
DRM |
Digital Rights Management |
DSL |
Digital Subscriber Line |
DSLAM |
Digital Subscriber Line Access Multiplexer |
DSLR |
Digital SLR |
DTD |
Document Type Definition |
DTO |
Data Offset |
DV |
Digital Video |
DVD |
Digital Versatile Disc |
DVD+R |
DVD Recordable |
DVD+RW |
DVD Rewritable |
DVD-R |
DVD Recordable |
DVD-RAM |
DVD Random Access Memory |
DVD-RW |
DVD Rewritable |
DVI |
Digital Video Interface |
DVR |
Digital Video Recorder |
ECC |
Error Correction Code |
EDI |
Electronic Data Interchange |
EEPoE |
Energy Efficient PoE |
EIA |
Electronic Industries Alliance |
EIDE |
Enhanced Integrated Drive Electronics |
EPS |
Encapsulated PostScript |
eSATA |
External SATA |
EUP |
Enterprise Unified Process |
EXIF |
Exchangeable Image File Format |
FAQ |
Frequently Asked Questions |
FCS |
Frame Check Sequence |
FDDI |
Fiber Distributed Data Interface |
FIFO |
First In, First Out |
FILO |
First In, Last Out |
FIN |
Finished |
FiOS |
Fiber Optic Service |
FLG |
Flag |
FLOPS |
Floating Point Operations Per Second |
FLP |
Fast Link Pulse |
FPS |
Frames Per Second |
FPU |
Floating Point Unit |
FQDN |
Fully Qualified Domain Name |
FSB |
Frontside Bus |
FTP |
File Transfer Protocol |
Gbps |
Gigabits Per Second |
GIF |
Graphics Interchange Format |
GIGO |
Garbage In, Garbage Out |
GIS |
Geographic Information Systems |
GOV |
Group of Video |
GPIO |
General Purpose Input/Output |
GPS |
Global Positioning System |
GPU |
Graphics Processing Unit |
GUI |
Graphical User Interface |
GUID |
Globally Unique Identifier |
HD |
High Definition |
HDD |
Hard Disk Drive |
HDMI |
High-Definition Multimedia Interface |
HDTV |
High Definition Televsion |
HDV |
High-Definition Video |
HFS |
Hierarchical File System |
HSF |
Heat Sink and Fan |
HTML |
HyperText Markup Language |
HTTP |
HyperText Transfer Protocol |
HTTPS |
HyperText Transport Protocol Secure |
I/O |
Input/Output |
ICANN |
Internet Corporation For Assigned Names and Numbers |
ICF |
Internet Connection Firewall |
ICMP |
Internet Control Message Protocol |
ICS |
Internet Connection Sharing |
ICT |
Information and Communication Technologies |
IDE |
Integrated Device Electronics or Integrated Development Environment |
IDS |
Intrusion Detection System |
IEEE |
Institute of Electrical and Electronics Engineers |
IETF |
Internet Engineering Task Force |
IGP |
Integrated Graphics Processor |
IIS |
Internet Information Services |
IM |
Instant Message |
IMAP |
Internet Message Access Protocol |
InterNIC |
Internet Network Information Center |
IP |
Internet Protocol |
IPS |
Intrusion Prevention System |
IPX |
Internetwork Packet Exchange |
IRC |
Internet Relay Chat |
IRQ |
Interrupt Request |
ISA |
Industry Standard Architecture |
iSCSI |
Internet Small Computer Systems Interface |
ISDN |
Integrated Services Digital Network |
ISO |
International Organization for Standardization |
ISP |
Internet Service Provider |
IT |
Information Technology |
IVR |
Interactive Voice Response |
JFS |
Journaled File System |
JPEG |
Joint Photographic Experts Group |
JPG |
JPEG Filename Extension |
JRE |
Java Runtime Environment |
JSF |
JavaServer Faces |
JSON |
JavaScript Object Notation |
JSP |
Java Server Page |
Kbps |
Kilobits Per Second |
KDE |
K Desktop Environment |
KVM Switch |
Keyboard, Video, and Mouse Switch |
LAMP |
Linux, Apache, MySQL, and PHP |
LAN |
Local Area Network |
LCD |
Liquid Crystal Display |
LDAP |
Lightweight Directory Access Protocol |
LED |
Light-Emitting Diode |
LIFO |
Last In, First Out |
LPI |
Lines Per Inch |
LTE |
Long Term Evolution |
LUN |
Logical Unit Number |
MAC Address |
Media Access Control Address |
MAMP |
Mac OS X, Apache, MySQL, and PHP |
MANET |
Mobile Ad Hoc Network |
Mbps |
Megabits Per Second |
MBR |
Master Boot Record |
MCA |
Micro Channel Architecture |
MDI |
Medium Dependent Interface |
MIDI |
Musical Instrument Digital Interface |
MIME |
Multi-Purpose Internet Mail Extensions |
MIPS |
Million Instructions Per Second |
MIS |
Management Information System |
MMS |
Multimedia Messaging Service |
Modem |
modulator-demodulator |
MOOC |
Massive Open Online Course |
MP3 |
MPEG-1 Audio Layer-3 |
MPEG |
Moving Picture Experts Group |
MTU |
Maximum Transmission Unit |
NAT |
Network Address Translation |
NetBIOS |
Network Basic Input/Output System |
NIC |
Network Interface Card |
NNTP |
Network News Transfer Protocol |
NOC |
Network Operations Center |
NSP |
Network Service Provider |
NTFS |
New Technology File System |
NTSC |
National Television System Committee |
NUI |
Natural User Interface |
NVRAM |
Non-Volatile Random Access Memory |
OASIS |
Organization for the Advancement of Structured Information Standards |
OCR |
Optical Character Recognition |
ODBC |
Open Database Connectivity |
OEM |
Original Equipment Manufacturer |
OLAP |
Online Analytical Processing |
OLE |
Object Linking and Embedding |
OLED |
Organic Light Emitting Diode |
OOP |
Object-Oriented Programming |
OPT |
Options |
OSD |
On Screen Display |
OSPF |
Open Shortest Path First |
P2P |
Peer To Peer |
PAL |
Phase Alternating Line |
PC |
Personal Computer |
PCB |
Printed Circuit Board |
PCI |
Peripheral Component Interconnect |
PCI-X |
Peripheral Component Interconnect Extended |
PCMCIA |
Personal Computer Memory Card International Association |
PD |
Powered Device |
PDA |
Personal Digital Assistant |
PDF |
Portable Document Format |
PHP |
Hypertext Preprocessor |
PII |
Personally Identifiable Information |
PIM |
Personal Information Manager |
PMU |
Power Management Unit |
PNG |
Portable Network Graphic |
PoE |
Power over Ethernet |
PoE+ |
Power over Ethernet Plus |
PON |
Passive Optical Network |
POP3 |
Post Office Protocol |
POST |
Power On Self Test |
PPC |
Pay Per Click |
PPGA |
Plastic Pin Grid Array |
PPI |
Pixels Per Inch |
PPL |
Pay Per Lead |
PPM |
Pages Per Minute |
PPP |
Point to Point Protocol |
PPPoE |
Point-to-Point Protocol over Ethernet |
PPS |
Pay Per Sale |
PPTP |
Point-to-Point Tunneling Protocol |
PRAM |
Parameter Random Access Memory |
PROM |
Programmable Read-Only Memory |
PS/2 |
Personal System/2 |
PSE |
Power Sourcing Equipment |
PSH |
Push |
PUM |
Potentially Unwanted Modification |
PUP |
Potentially Unwanted Program |
PyPI |
Python Package Index |
QBE |
Query By Example |
RAID |
Redundant Array of Independent Disks |
RAM |
Random Access Memory |
RCP |
Remote copy |
RDF |
Resource Description Framework |
RDRAM |
Rambus Dynamic Random Access Memory |
RF |
Radio Frequency |
RFID |
Radio-Frequency Identification |
RGB |
Red Green Blue |
RIA |
Rich Internet Application |
RISC |
Reduced Instruction Set Computing |
RJ |
Registered Jack |
ROM |
Read-Only Memory |
RPC |
Remote Procedure Call |
RPM |
Revenue Per 1,000 Impressions |
RS |
Recommended Standard |
RSS |
RDF Site Summary |
RST |
Reset |
RTE |
Runtime Environment |
RTF |
Rich Text Format |
RUP |
Rational Unified Process |
Rx |
Receive |
SaaS |
Software as a Service |
SAN |
Storage Area Network |
SATA |
Serial Advanced Technology Attachment |
SCP |
Secure copy |
SCSI |
Small Computer System Interface |
SD |
Secure Digital |
SDK |
Software Development Kit |
SDLC |
System Development Lifecycle |
SDRAM |
Synchronous Dynamic Random Access Memory |
SDSL |
Symmetric Digital Subscriber Line |
SEO |
Search Engine Optimization |
SEQ |
Sequence |
SERP |
Search Engine Results Page |
SFTP |
SSH FTP also Secure FTP |
SFTP |
Simple FTP |
SIMD |
Single Instruction/Multiple Data |
SIMM |
Single In-Line Memory Module |
SIP |
Session Initiation Protocol |
SKU |
Stock Keeping Unit |
SLA |
Software License or Service Level Agreement |
SLI |
Scalable Link Interface |
SLR |
Single-lens reflex |
SMART |
Self-Monitoring Analysis And Reporting Technology |
SMB |
Server Message Block |
SMM |
Social Media Marketing |
SMS |
Short Message Service |
SMTP |
Simple Mail Transfer Protocol |
SNMP |
Simple Network Management Protocol |
SOA |
Service Oriented Architecture |
SOAP |
Simple Object Access Protocol |
SO-DIMM |
Small Outline Dual In-Line Memory Module |
SQL |
Structured Query Language |
SRAM |
Static Random Access Memory |
SRC |
Source |
sRGB |
Standard Red Green Blue |
SSD |
Solid State Drive |
SSH |
Secure Shell |
SSID |
Service Set Identifier |
SSL |
Secure Sockets Layer |
SYN |
Synchronization |
TCP/IP |
Transmission Control Protocol/Internet Protocol |
TFT |
Thin-Film Transistor |
TIA |
Telecommunications Industry Association |
TIFF |
Tagged Image File Format |
TLS |
Transport Layer Security |
ToS |
Terms of Service |
ToU |
Terms of Use |
ToV |
Target of Verification |
TTL |
Time To Live |
TWAIN |
Toolkit Without An Informative Name |
Tx |
Transmit |
UAT |
User Acceptance Testing |
UDDI |
Universal Description Discovery and Integration |
UDP |
User Datagram Protocol |
UGC |
User Generated Content |
UML |
Unified Modeling Language |
UNC |
Universal Naming Convention |
UPnP |
Universal Plug and Play |
UPOE |
Universal PoE |
UPS |
Uninterruptible Power Supply |
URI |
Uniform Resource Identifier |
URL |
Uniform Resource Locator |
URP |
Urgent Pointer |
USB |
Universal Serial Bus |
UTF |
Unicode Transformation Format |
VCI |
Virtual Channel Identifier |
VDSL |
Very High Bit Rate Digital Subscriber Line |
VDU |
Visual Display Unit |
VESA |
Video Electronics Standards Association |
VFAT |
Virtual File Allocation Table |
VGA |
Video Graphics Array |
VLAN |
Virtual LAN |
VLB |
VESA Local Bus |
VLE |
Virtual Learning Environment |
VoIP |
Voice over Internet Protocol |
VPI |
Virtual Path Identifier |
VPN |
Virtual Private Network |
VR |
Vibration Reduction |
VRAM |
Video Random Access Memory |
VRML |
Virtual Reality Modeling Language |
W3C |
World Wide Web Consortium |
WAIS |
Wide Area Information Server |
WAMP |
Windows, Apache, MySQL, and PHP |
WAN |
Wide Area Network |
WDDM |
Windows Display Driver Model |
WEP |
Wired Equivalent Privacy |
Wi-Fi |
Wireless Fidelity |
WIMP |
Windows, Icons, Menus, Pointer |
WIN |
Window |
WINS |
Windows Internet Name Service |
WPA |
Wi-Fi Protected Access |
WWW |
World Wide Web |
XHTML |
Extensible Hypertext Markup Language |
XML |
Extensible Markup Language |
XMP |
Extensible Metadata Platform |
XSLT |
Extensible Style Sheet Language Transformation |
XSS |
Cross-Site Scripting |
Y2K |
Year 2000 |
ZFS |
Zettabyte File System |
ZIF |
Zero Insertion Force |