A

amperes

mA

milliamperes

dB

decibels

A

microamperes

GB

gigabytes

MB

megabytes

Hz

hertz

MHz

megahertz

in.

inches

mm

millimeters

k

1000

ms

milliseconds

K

1024

s

microseconds

KB

kilobytes

ns

nanoseconds

kg

kilograms

sec.

seconds

kHz

kilohertz

V

volts

k

kilohms

W

watts

lb.

pounds

ADM

Apple drive module

ATA

advanced technology attachment

ATAPI

advanced technology attachment, packet interface

CAS

column address strobe

CD-ROM

compact disc read-only memory

CLI

command line interface

DBDMA

descriptor-based direct memory access

DDR

double data rate, a type of SDRAM

DIMM

dual inline memory module

DMA

direct memory access

DRAM

dynamic random-access memory

ECC

error code correction

EDO

extended data out DRAM device type

EIDE

extended IDE

EMI

electromagnetic interference

FTP

file transfer protocol

G5

Generation 5, the fifth generation of PowerPC microprocessors

GUI

graphic user interface

HID

human interface device, a class of USB devices

I2C

same as IIC

IIS

same as IIS

IC

integrated circuit

IDE

integrated device electronics

IEEE

Institute of Electrical and Electronics Engineers

IEEE 1274

the official specification for Open Firmware

IEEE 1394a

the official specification for FireWire 400

IEEE 1394b

the official specification for FireWire 800

IIC

inter-IC (an internal control bus)

IIS

inter-IC sound bus

I/O

input/output

ISO

International Organization for Standardization

JEDEC

Joint Electronics Devices Engineering Council

L2

level 2 (refers to level of cache)

LAN

local area network

MAC

media access controller

Mac OS

Macintosh Operating System

MIB

management infomation base

MPI

message passing interface

PCI

Peripheral Component Interconnect

PCI-X

Extended Peripheral Component Interconnect

PDC

primary domain controller

PHY

physical layer

PIO

polled input/output

RADIUS

Remote Authentication Dial-In User Service

RAID

redundant array of inexpensive drives

RAM

random-access memory

RAS

row address strobe

RBC

reduced block commands

RGB

a video signal format with separate red, green, and blue components

RISC

reduced instruction set computing

rms

root mean square

ROM

read-only memory

RS-232

standard serial interface

RS-422

standard serial interface

SBP

Serial Bus Protocol

SPD

Serial Presence Detect

SCSI

Small Computer System Interface

SCC

serial communications controller

SNMP

simple network management protocol

SDRAM

synchronous dynamic random access memory

SRAM

static random access memory

UPS

uninterruptible power supply

USB

Universal Serial Bus

VRAM

video RAM; used for display buffers