Chapter 1 Introduction

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

GPU

Graphics processing unit

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

IGP

Integrated graphics processor

Continued

1-6Compaq D315 and hp d325 Personal Computers Featuring the AMD Athlon XP Processor

Second Edition – April 2003