A

amperes

MB

megabytes

dB

decibels

Mbps

megabits per second

GB

gigabytes

Mbit

megabits

GHz

gigahertz

MHz

megahertz

Hz

hertz

mm

millimeters

KB

kilobytes

ns

nanoseconds

kg

kilograms

V

volts

kHz

kilohertz

VDC

volts direct current

mA

milliamperes

$n

hexadecimal value n

10Base-T

an Ethernet standard for data transmission at 10 Mbits per second

100Base-TX

an Ethernet standard for data transmission at 100 Mbits per second

A/D

analog to digital

AGP

accelerated graphics port

ANSI

American National Standards Institute

API

application programming interface

ATA

Advanced Technology Attachment

ATAPI

ATA Packet Interface

BIOS

basic input/output system

CAS

column address strobe

CD

compact disc

CD-R

compact disc-recordable

CD-ROM

compact disc read-only memory

CD-RW

compact disc-rewrittable

CPU

central processing unit

CRM

Communications Resource Manager

D/A

digital to analog

DAA

data access adapter

DBDMA

descriptor-based direct memory access

DIMM

Dual Inline Memory Module

DMA

direct memory access

DDR

double data rate, a type of SDRAM

DSSS

direct-sequence spread-spectrum

DV

digital video

DVD

digital video disc

DVD-R

digital video disc-recordable

DVD-ROM

digital video disc read-only memory

DVD-RW

digital video disc-rewrittable

EEPROM

electrically eraseable programmable ROM

G4

Generation 4, the fourth generation of PowerPC microprocessors

GART

graphics address remapping table

GND

ground

HFS

hierarchical file system

HID

human interface device, a class of USB devices

IC

integrated circuit

IEC

International Electrotechnical Commission

I/O

input and output

ISO

International Organization for Standardization

JEDEC

Joint Electron Device Engineering Council

L1

level 1 or first level

L2

level 2 or second level

LAN

local area network

LED

light emitting diode

MAC

media access controller

Mac OS

Macintosh Operating System

MPEG

Motion Picture Experts Group

modem

modulator-demodulator

NMI

nonmaskable interrupt

NV-RAM

nonvolatile random-access memory

OHCI

Open Host Controller Interface

OS

operating system

PCI

Peripheral Component Interconnect

PLL

phase-locked loop

POST

power-on self test

RADIUS

Remote Authentication Dial-In User Service

RAM

random-access memory

RCA

Radio Corporation of America

rms

root mean square

ROM

read-only memory

RTAS

run-time abstraction services

SCC

Serial Communications Controller

SDRAM

synchronous dynamic RAM

SGRAM

synchronous graphics RAM

SNR

signal to noise ratio

SPD

Serial Presence Detect

THD

total harmonic distortion

THD+N

total harmonic distortion plus noise

USB

Universal Serial Bus

VCC

positive supply voltage (voltage for collectors)

VIA

versatile interface adapter

Wi-Fi

Logo used by the Wireless Ethernet Compatibility Alliance for certification of interoperability of 802.11 products