AC

alternating current

ACT

activity

AMR 

audio modem riser

AT

advanced technology

ATA

advanced technology attachment

BIOS

basic input/output system

CMOS

complementary metal-oxide semiconductor

CPU

central processing unit

DC

direct current

DIMM

dual inline memory module

DRAM

dynamic random access memory

EMP

electromagnetic pulse

FAT

FTP

file transfer protocol

GB

gigabyte

GHz

gigahertz

HDD

hard disk drive

IDE

integrated drive electronics

I/O

input/output

IP

Internet protocol

ISP

Internet service provider

LAN

local area network

LED

light emitting diode

MMX

multimedia extensions

NetBIOS

networked basic input/output system

NTFS

new technology file system

PC

personal computer

PPP

point-to-point protocol

RAM

random access memory

ROM

read only memory

SC

subscription channel

SP

service pack

USB

universal serial bus