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 Mbps

100BASE-T

an Ethernet standard for data transmission at 100 Mbps

1000BASE-T

an Ethernet standard for data transmission at 1000 Mbps (Gigabit Ethernet)

ACL

Asynchronous Connectionless

A/D

analog to digital

AMB

advanced memory buffers

ANSI

American National Standards Institute

API

application programming interface

ATAPI

ATA Packet Interface

AV/C

Audio/Video Control

BER

bit error rate

BIOS

basic input/output system

BOSS

bus/owner/supervisor/selector arbitration scheme

CAS

column address strobe

CAT 5

category 5 cable characteristics specification

CAV

constant angular velocity

CD

compact disc

CD-R

compact disc-recordable

CD-ROM

compact disc read-only memory

CD-RW

compact disc-rewritable

CLV

constant linear velocity

CPU

central processing unit

CRC

cyclic redundancy check

CRM

Communications Resource Manager

CSMA/CD

Carrier Sense Multiple Access/Collision Detection

D/A

digital to analog

DAA

data access adapter

DART

DMA Address Relocation Table

DBDMA

descriptor-based direct memory access

DCAM

protocol for communication between digital cameras and computers over FireWire

DCE

data communication equipment

DDC

display data channel

DDR

double data rate, a type of SDRAM where data is clocked on rising and falling clock edges

DDR2

second generation double data rate, a type of SDRAM where data is clocked on rising and falling clock edges

DIMM

Dual Inline Memory Module

DMA

direct memory access

DRAM

dynamic random-access memory

DSP

digital signal processor

DSSS

direct-sequence spread-spectrum

DTE

data terminal equipment

DVI

digital video interface

DVD

digital video disc

DVD-R

digital video disc-recordable

DVD-ROM

digital video disc read-only memory

DVD-RW

digital video disc-rewritable

ECC

Error Correction Code

EDID

Extended Display Identification Data

EDR

enhanced data rate

EEPROM

electrically erasable programmable ROM

EFI

Extensible Firmware Interface

EHCI

Enhanced Host Controller Interface for USB 2.0

EIA

Electronic Industries Alliance

EM64T

Extended Memory 64 Technology

ESI

Enterprise Southbridge Interface

FB-DIMM

Fully-Buffered Dual Inline Memory Module (DIM)M

FHSS

frequency-hopping spread spectrum

FWH

Firmware hub

G5

Generation 5, the fifth generation of PowerPC microprocessors

GAP

generic access profile

GART

graphics address remapping table

GDDR3

graphical double data rate, a third generation VDRAM

GND

ground

HFS

hierarchical file system

HID

human interface device, a class of USB devices

I2C

inter-IC (an internal control bus)

I2S

inter-IC sound bus

IC

integrated circuit

IDE

integrated device electronics

IEC

International Electrotechnical Commission

IEEE

Institute of Electrical and Electronics Engineers

IEEE 1275

the official specification for Open Firmware

IEEE 1394

the official specification for FireWire

IIDC

instrumentation and industrial camera

I/O

input and output

IOAT

input/output acceleration technology

IR

infrared

IrDA

Infrared Data Association

ISM

industrial, scientific, and medical

ISO

International Organization for Standardization

JEDEC

Joint Electron Device Engineering Council

L1

level 1 or first level

L2

level 2 or second level

L2CAP

Logical Link Control and Adaptation Protocol

LAN

local area network

LED

light emitting diode

LLC

logical link control

LPC

Low Pin Count

LVD

low voltage differential

LVDS

low voltage differential signaling, the type of bus used to connect the internal display to the PCI Express graphics controller

MAC

media access controller

Mac OS

Macintosh Operating System

MCH

memory controller hub

MPEG

Moving Picture Experts Group

modem

modulator-demodulator

NMI

nonmaskable interrupt

NV-RAM

nonvolatile random-access memory

OFDM

orthogonal frequency-division multiplexing

OHCI

Open Host Controller Interface for USB 1.1 specification or FireWire

OS

operating system

OSI

Open Systems Interconnection

PAN

personal area network

PCI

Peripheral Component Interconnect

PCI Express

Peripheral Component Interconnect Express, 3rd generation I/O

PCI-X

Peripheral Component Interconnect Extended, 2nd generation I/O

PHY

hardware that forms the physical or electronic interface of a link or bus

PLL

phase-locked loop

POST

power-on self test

RADIUS

Remote Authentication Dial-In User Service

RAM

random-access memory

RAS

row address strobe

RBC

reduced block commands

RCA

Radio Corporation of America

rms

root mean square

RFCOM

Radio Frequency Communications

ROM

read-only memory

RTAS

run-time abstraction services

S-PDIF

Sony/Phillips Digital Interface Format

SATA

serial ATA bus for hard disk drives

SBP

Serial Bus Protocol

SCC

Serial Communications Controller

SCO

Synchronous Connection-Oriented)

SDRAM

synchronous dynamic RAM

SGRAM

synchronous graphics RAM

SIMD

single instruction to multiple data

SMC

system management controller

SMU

system management unit

SNR

signal to noise ratio

SO-DIMM

Small Outline Dual Inline Memory Module

SPD

Serial Presence Detect

SPI

Serial Peripheral Interface

SSE

streaming SIMD Extensions

SSO

simultaneous switching output

STP

shielded twisted pair (cable)

TCS

Telephony Control Specification

THD

total harmonic distortion

THD+N

total harmonic distortion plus noise

TMDS

transition minimized differential signaling

USB

Universal Serial Bus

USB 2.0

Universal Serial Bus, second generation

UTP

unshielded twisted pair (cable)

VCC

positive supply voltage (voltage for collectors)

VIA

versatile interface adapter

VESA

Video Electronics Standards Association

VRAM

video RAM; used for display buffers

WEP

Wired Equivalent Privacy encryption scheme

Wi-Fi

Term referring to any 802.11 wireless LAN, used specifically by the Wi-Fi Alliance for certification of interoperability of 802.11 products

WLAN

wireless local area network

WPA

Wi-Fi Protected Access encryption scheme

ZCLV

zoned constant linear velocity