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Computer Related Acronyms


AC:       Alternating Current
ACPI:    Advanced Configuration and Power Interface
ALU:    Arithmetic-Logic Unit
AM:     Amplitude Modulated
AMD:  Advanced Micro Devices, Inc.
AMI:  American Megatrends Inc.
ANSI:  American National Standards Institute
APIC:  Advanced Programmable Interrupt Controller
APM:  Advanced Power Management
ASCII:  American Standard Code for Information Interchange
ASIC:  Application Specific Integrated Circuit
ASPI:  Advanced SCSI Programming Interface
AT:  Advanced Technology
ATA:  AT Bus Attachment
ATAPI:  ATA Packet Interface
ATM:  Asynchronous Transfer Mode
BBS:  Bulletin Board System
BCC:  Block Check Character
BCD:  Binary Coded Decimal
BIOS:  Basic Input / Output System
BNC:  Bayonet Nut Connector
BPS/bps:  Bytes/bits Per Second
BSC:  Binary Synchronous Communications
BSD:  Berkeley Standard Distribution
BTU:  British Thermal Units
CAD:  Computer Aided Design
CAM:  Computer Aided Manufacturing
CAS:  Column Address Strobe
CD:  Carrier Detect
CDROM:  Compact Disk Read Only Memory
CGA:  Color Graphics Adapter
CHS:  Cylinder Head Sector
CMOS:  Complementary Metal-Oxide Semiconductor
CPI:  Clocks Per Instruction
CPU:  Central Processing Unit
CR:  Carriage Return
CRC:  Cyclical Redundancy Check
CRT:  Cathode Ray Tube
CSR:  Command Status Register
CTS:  Clear To Send
DAT:  Digital Audio Tape
DC:  Direct Current
DCD:  Data Carrier Detect
DCE:  Data Circuit-terminating Equipment
DD:  Double Density
DEC:  Digital Equipment Corporation
DIP:  Dual-In-line Package
DMA:  Direct Memory Access
DMI:  Desktop Management Interface
DOS:  Disk Operating System
DPE:  Data Parity Error
DRAM:  Dynamic Random Access Memory
DS:  Double Sided
DSP:  Digital Signal Processor
DSR:  Data Set Ready
DTC:  Data Terminal Controller
DTE:  Data Terminating Equipment
DTR:  Data Terminal Ready
EBCDIC:  Extended Binary Coded Decimal Interchange Code
EC:  Error Check
ECC:  Error Check and Correction
ECP:  Enhanced Communication Port
ECU:  EISA Configuration Utility
EDO:  Extended Data Out RAM
EEPROM:  Electrically Erasable Programmable Read Only Memory
EGA:  Enhanced Graphics Adapter
EIA:  Electronic Industries Association
EIDE:  Enhanced Integrated Device Electronics
EISA:  Enhanced Industry Standard Architecture
EMI:  Electro-Magnetic Interference
EMF:  Electro-Magnetic Force
EMS:  Expanded Memory Specification
EOF:  End Of File
EOL:  End Of Line
EPP:  Enhanced Parallel Port
EPROM:  Erasable Programmable Read Only Memory
ESCD:  Extended System Configuration Data
ESD:  Electro-Static Discharge
ESDI:  Enhanced Small Devices Interface
FAT:  File Allocation Table
FCC:  Federal Communications Commission
FDD:  Fixed/Floppy Disk Drive
FDDI:  Fiber Distributed Data Interface
FDM:  Frequency Division Multiplexing
FDX:  Full-Duplex Transmission
FE:  Front End
FEP:  Front End Processor
FF:  Form Feed
FIFO:  First-In First-Out
FILO:  First-In Last-Out
FM:  Frequency Modulation
FPGA:  Field Programmable Gate Array
FPM:  Fast Page Mode RAM
FPU:  Floating Point Unit
FRC:  Functional Redundancy Checking
FRU:  Field-Replaceable Unit
FSF:  Free Software Foundation
FSK:  Frequency Shifty Keying
FTP:  File Transfer Program
GAS:  Gallium Arsenide
GFLOPS:  Billions of FLOating Point Operations Per Second
GUI:  Graphical User Interface
HD:  High Density / Hard Disk
HDD:  Hard Disk Drive
HDX:  Half-Duplex Transmission
HFS:  Hierarchical File System
HPFS:  High Performance File System
I/O:  Input/Output
IBM:  International Business Machines Corporation
IC:  Integrated Circuit
IDE:  Integrated Device Electronics
IEEE:  Institute of Electrical and Electronic Engineers
IMP:  Interface Message Processor
IPC:  Inter Process Communication
IPX:  Inter network Packet eXchange
IRQ:  Interrupt ReQuest
ISA:  Industry Standard Architecture
ISDN:  Integrated Services Digital Network
ISO:  International Standards Organization
JFS:  Journalized File System
KNI:  Katmai New Instructions
kVA:  KiloVolt-Amps
LAN:  Local Area Network
LBA:  Linear Block Array / Addressing
LCD:  Liquid Crystal Display
LED:  Light Emitting Diode
LF:  Line Feed
LIM:  Lotus/Intel/Microsoft’s Expanded Memory Manager
LRU:  Least-Recently Used
LSB/lsb:  Least Significant Byte/bit
LSI:  Large Scale Integration
LUN:  Logical Unit Number
MAN:  Metropolitan Area Network
MB/Mb:  Mega Bytes/bits
MBR:  Master Boot Record
MCA:  Micro Channel Architecture
MCGA:  Multi-Color Graphics Array
MCM:  Multi-Chip Module
MDRAM:  Multi-bank RAM
MFLOPS:  Millions of FLOating Point Operations per Second
MFM:  Modified Frequency Modulated
MHz:  MegaHertz
MICR:  Magnetic Ink Character Recognition
MIDI:  Musical Instrument Data Interface
MIMD:  Multiple-Instruction Multiple-Data
MIPS:  Millions of Instructions per Second
MISD:  Multiple-Instruction Single Data
MMU:  Memory Management Unit
MMX:  Multi-Media Extensions
MNP:  Microcom Network Protocol
MODEM:  MOdulator / DEModulator
MOPS:  Millions of Operations Per Second
MOS:  Metal-Oxide Semiconductor
MP:  Multi-Processor
MPP:  Massively Parallel Processor
MPS:  Multi-Processor System
MSB/msb:  Most Significant Byte/bit
MSDOS:  Microsoft’s Disk Operating System
MSI:  Medium Scale Integration
MTBF:  Mean Time Between Failure
N/C:  No-Connect
NBS:  National Bureau of Standards
NEMA:  National Electrical Manufacturers Association
NFS:  Network File System
NFU:  Not-Frequently Used
NMI:  Non-Maskable Interrupt
NMOS:  Negatively doped Metal-Oxide Semiconductor
NOP:  No OPeration NRU Not-Recently Used
NSF:  National Science Foundation
NVRAM:  NonVolatile Random Access Memory
OCR:  Optical Character Recognition
ODI:  Open Data link Interface
OEM:  Original Equipment Manufacturer
OS:  Operating System
OSF:  Open Software Foundation
OSI:  Open Systems Interconnect
PAL/PLA:  Programmable Array Logic / Logic Array
PB:  Push Button
PBX:  Private Branch eXtender
PC:  Personal Computer, Program Counter
PCB:  Printed Circuit Board
PCI:  Peripheral Component Interconnect
PCM:  Pulse Code Modulation
PCMCIA:  Personal Computer Memory Card International Association
PE:  Processor Element
PFF:  Page Fault Frequency
PGA:  Professional Graphics Array
PGA:  Pin Grid Array
PIC:  Programmable Interrupt Controller
PIO:  Programmed Input / Output
PIROM:  Processor Information ROM
PLCC:  Plastic Leaded Chip Carrier
PLL:  Phase Locked Loop
PM:  Preventive Maintenance
PMOS:  Positively doped Metal-Oxide Semiconductor
PnP:  Plug-and-Play
POST:  Power On Self Test
PPP:  Point-to-Point Protocol
PQFP:  Plastic Quad Flat Pack
PROM:  Programmable Read Only Memory
PSTN:  Public Switched Telephone Network
PTE:  Page Table Entry
QAM:  Quadrature Amplitude Modulation
QFP:  Quad Flat Pack
QIC:  Quarter Inch Cartridge
RAID:  Redundant Arrays of Inexpensive Disks
RAM:  Random Access Memory
RAMDAC:  Random Access Memory Digital to Analogue Converter
RAS:  Row Address Strobe
RCA:  Radio Corporation of America
RCC:  Routing Control Center
RDRAM:  Rambus DRAM
RFC:  Request For Comments
RFI:  Radio Frequency Interference
RI:  Ring Indicator
RISC:  Reduced Instruction-Set Computer
RLL:  Run Length Limited
RMS:  Root Mean Squared
RMW:  Read Modify Write
ROM:  Read Only Memory
RPC:  Remote Procedure Call
RPM:  Rotations Per Minute
RTC:  Real Time Clock
RTS:  Request To Send
SAM:  Sequential Access Memory
SASI:  Shugart Associates Standard Interface
SCSI:  Small Computer Systems Interface
SD:  Single Density
SDLC:  Synchronous Data Link Control
SDRAM:  Synchronous Dynamic RAM
SDRAM DDR:  Double Data Rate SDRAM
SDRAM BDDR:  Bi-Directional Strobed DDR SDRAM
SE:  Systems Engineer
SEC:  Single Edge Contact
SFF:  Small Form Factor
SGRAM:  Synchronous Graphics RAM
SIMD:  Single-Instruction Multiple-Data
SIMM:  Single Inline Memory Module
SIPP:  Single Inline Pinned Package
SISD:  Single-Instruction Single-Dat
SLIP:  Serial Line Internet Protocol
SMD:  Surface Mount Device
SMT:  Surface Mount Technology
SNA:  System Network Architecture
SNR:  Signal to Noise Ratio
SO/SOL:  Small Out Line
SOIC:  Small Outline Integrated Circuit
SPOOL:  Simultaneous Peripheral Operation On Line
SPT:  Sectors Per Track
SPU:  Single Processor Unit
SRAM:  Static Random Access Memory
SS:  Single Sided
STDM:  Synchronous Time Division Multiplexing
STN:  Super Twisted Nematic
STU:  Streaming Tape Unit
SVGA:  Super Video Graphics Array
TCM:  Trellis Code Modulation
TCP/IP:  Transmission Control Protocol / Internet Protocol
TDM:  Time Division Multiplexing
TI:  Texas Instruments
TIA:  Telecomm Industry Association
TLB:  Translation-Look aside Buffer
TPI:  Tracks Per Inch
TRANSISTOR:  TRANSformer resISTOR
TSR:  Terminate and Stay Resident
TTL:  Transistor-Transistor Logic
UAE:  Unrecoverable Application Error
UART:  Universal Asynchronous Receiver/Transmitter
UDP:  User Datagram Protocol
UMB:  Upper Memory Block
UNIX:  A trademark used for a computer disk operating system
UPS:  Un-interruptible Power Supply
USL:  UNIX System Labs
UUCP:  UNIX to UNIX Copy Program
VBE:  Video BIOS Extensions
VCR:  Video Cassette Recorder
VESA:  Video Enhanced Standards Association
VGA:  Video Graphics Array
VLB:  VESA Local Bus
VLIW:  Very Long Instruction Word
VLSI:  Very Large Scale Integration
VM:  Virtual Memory
VME:  Versa Module Euro-card
VRAM:  Video Random Access Memory
VRT:  Voltage Reduction Technology
VTR:  Video Tape Recorder
WAN:  Wide Area Network
WATS:  Wide Area Telephone Service
WD:  Western Digital
WORM:  Write Once - Read-Many
WRAM:  Window Random Access Memory
WS:  Wait State
XGA:  eXtended Graphics Array
XMS:  Extended Memory Specification
XOR:  Exclusive-OR
XT:  eXtended Technology
ZIF:  Zero Insertion Force
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