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Technical Reference Guide
Table 1-1. Acronyms and Abbreviations Continued
Acronym/Abbreviation Description
DAC digital-to-analog converter
DC direct current
DCH DOS compatibility hole
DDC Display Data Channel
DDR Double data rate (memory)
DIMM dual inline memory module
DIN Deutche IndustriNorm (connector type)
DIP dual inline package
DMA direct memory access
DMI Desktop management interface
dpi dots per inch
DRAM dynamic random access memory
DRQ data request
DVI Digital video interface
EDID extended display identification data
EDO extended data out (RAM type)
EEPROM electrically eraseable PROM
EGA enhanced graphics adapter
EIA Electronic Industry Association
EISA extended ISA
EPP enhanced parallel port
EIDE enhanced IDE
ESCD Extended System Configuration Data (format)
EV Environmental Variable (data)
ExCA Exchangeable Card Architecture
FIFO first in / first out
FL flag (register)
FM frequency modulation
FPM fast page mode (RAM type)
FPU Floating point unit (numeric or math coprocessor)
FPS Frames per second
ft Foot/feet
GB gigabyte
GMCH Graphics/memory controller hub
GND ground
GPIO general purpose I/O
GPOC general purpose open-collector
GART Graphics address re-mapping table
GUI graphic user interface
h hexadecimal
HW hardware
hex hexadecimal
Hz Hertz (cycles-per-second)
ICH I/O controller hub
IDE integrated drive element
IEEE Institute of Electrical and Electronic Engineers
IF interrupt flag
I/F interface
Continued
Compaq Evo and Workstation Personal Computers
Featuring the Intel Pentium 4 Processor
Second Edition – January 2003
1-5