A

amperes

MB

megabytes

dB

decibels

Mbps

megabits per second

GB

gigabytes

Mbit

megabits

Hz

hertz

MHz

megahertz

KB

kilobytes

mm

millimeters

kg

kilograms

ns

nanoseconds

kHz

kilohertz

V

volts

mA

milliamperes

VDC

volts direct current

mAh

milliampere-hours

10Base-T

an Ethernet standard for data transmission at 10 Mbits per second

100Base-T

an Ethernet standard for data transmission at 100 Mbits per second

ADB

Apple Desktop Bus

ADC

Apple Display Connector

AGP

accelerated graphics port

AIM

ATA Interface Module

AP

access point, for a wireless LAN

API

application programming interface

ASIC

application-specific integrated circuit

ATA

AT attachment

ATAPI

AT Attachment Packet Interface

CAS

column address strobe, a memory control signal

CAV

constant angular velocity

CD

compact disc

CD-ROM

compact disc read-only memory

CKE

clock enabled

CLV

constant linear velocity

CPU

central processing unit

DAA

data access adapter (a telephone line interface)

DAC

digital-to-analog converter

DDC

display data channel

DDR

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

DFS

dynamic frequency switching

DIMM

Dual Inline Memory Module

DMA

direct memory access

DPS

dynamic power step

DSP

digital signal processor

DSSS

direct-sequence spread-spectrum

EDID

Extended Display Identification Data

EDO

extended data out

EDR

enhanced data rate

EHCI

Enhanced Host Controller Interface —USB 2.0 protocol

EIDE

enhanced integrated device electronics

G4

Generation 4, the fourth generation of PowerPC microprocessors

GND

ground

HFS

hierarchical file system

HCRP

hardcopy cable replacement profiler

HID

human interface device, a class of USB devices

I2C

inter IC control bus (same as IIC)

I2S

inter IC sound bus (same as IIS)

IC

integrated circuit

IDE

integrated device electronics

IIC

inter IC control bus (same as I2C)

IIS

inter IC sound bus (same as I2S)

I/O

input and output

ISM

industrial, scientific, and medicine

ISO

International Organization for Standardization

JEDEC

Joint Electron Device Engineering Council

L1

level 1 or first level, a type of CPU cache

L2

level 2 or second level, a type of CPU cache

LAN

local area network

LED

light emitting diode

MAC

media access controller

Mac OS

Macintosh Operating System

modem

modulator-demodulator, a data communications interface for use with analog telephone lines

NMI

nonmaskable interrupt

NOP

no operation

NTSC

National Television System Committee; the standard system used for broadcast TV in North America and Japan

NV-RAM

nonvolatile random-access memory

OFDM

orthogonal frequency-division multiplexing

OHCI

Open Host Controller Interface —USB 1.1 protocol

OS

operating system

PAL

Phase Alternate Lines; the standard for broadcast TV in most of Europe, Africa, South America, and southern Asia

PCAV

partial constant angular velocity (CLV at small radius, CAV at large radius)

PCI

Peripheral Component Interconnect

PHY

physical layer

PLL

phase-locked loop

POST

power-on self test

RADIUS

Remote Authentication Dial-In User Service

RAM

random-access memory

RF

radio frequency

rms

root mean square

ROM

read-only memory

SCC

Serial Communications Controller

SCSI

Small Computer System Interface

SDRAM

synchronous dynamic RAM

SMS

Sudden Motion Sensor

SNR

signal to noise ratio

SO-DIMM

small outline dual inline memory module

SPD

Serial Presence Detect, a feature of the SO-DIMM

USB

Universal Serial Bus

TMDS

transition minimized differential signalling

TDM

target disk mode

VCC

positive supply voltage (voltage for collectors)

VESA

Video Electronics Standards Association

VGA

video graphics adapter

VPN

virtual private network

WEP

Wired Equivalent Privacy

Wi-Fi

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

WLAN

wireless LAN

ZCLV

zone constant linear velocity