Ethical Hacker's Guide to Tools and Resources
Stay up-to-date with the latest and greatest ethical hacking tools and resources. Finesse your ethical hacking skills by visiting these sites for security, tools, resources, and more.
BlueScanner
Bluesnarfer
BlueSniper Rifle
Blooover
Bluejacking community site
BTScanner for XP
Car Whisperer
Detailed presentation on the various Bluetooth attacks
NIST Special Publication 800-48
Smurf
Certifications
Certified Ethical Hacker
Certified Information Security Manager
Certified Information Systems Security Professional
Certified Wireless Security Professional
CompTIA Security+
SANS GIAC
Databases
Advanced Access Password Recovery
Advanced SQL Password Recovery
AppDetectivePro
Elcomsoft Distributed Password Recovery
Microsoft SQL Server Management Studio Express
NGSSQuirreL
Pete Finnigan's listing of Oracle scanning tools
QualysGuard
SQLPing3 and SQLRecon
Exploit tools
Metasploit
Milw0rm
General research tools
AfriNIC
APNIC
ARIN
Bing
DNSstuff.com
dnstools.com
The File Extension Source
Google
Government domains
Hoover's business information
LACNIC
Military domains
Netcraft's What's that site running?
RIPE Network Coordination Centre
Switchboard.com
U.S. Patent and Trademark Office
US Search.com
U.S. Securities and Exchange Commission
Wotsit's Format
Whois.net
Whatismyip.com
Yahoo! Finance
Zabasearch
Hacker stuff
2600 The Hacker Quarterly
Computer Underground Digest
Hacker T-shirts, equipment, and other trinkets
Hackin9
Honeypots: Tracking Hackers
The Online Hacker Jargon File
PHRACK
Keyloggers
Invisible KeyLogger Stealth
KeyGhost
SpectorSoft
Laws and regulations
Gramm-Leach-Bliley Act (GLBA) Safeguards Rule
Health Information Technology for Economic and Clinical Health (HITECH) Act
Health Insurance Portability and Accountability Act (HIPAA) Security Rule
Payment Card Industry Data Security Standard (PCI DSS)
U.S. state breach notification laws
Linux
BackTrack
freshmeat.net
GFI LANguard
Linux Security Auditing Tool (LSAT)
QualysGuard
SourceForge
THC-Amap
Tiger
Live toolkits
BackTrack
Comprehensive listing of live bootable Linux toolkits
Knoppix
Network Security Toolkit
Security Tools Distribution
Log analysis
ArcSight Logger
GFI EventsManager
LogAnalysis.org system logging resources
Messaging
Abuse.net SMTP relay checker
Brutus
Cain & Abel
DNSstuff.com relay checker
EICAR Anti-Virus test file
GFI e-mail security test
mailsnarf
smtpscan
Miscellaneous tools
FreeZip
WinZip
NetWare
Craig Johnson's BorderManager resources
JRB Software
NetServerMon
Pandora
Rcon program
Remote
UserDump
Networks
Arpwatch
Blast
Cain & Abel
CommView
dsniff
Essential NetTools
ettercap
Firewalk
Getif
GFI LANguard
IETF RFCs
IKEcrack
MAC address vendor lookup
MAC Changer
Nessus vulnerability scanner
Netcat
Netfilter/iptables
NetResident
NetScanTools Pro
Nmap port scanner
NMapWin
OmniPeek
Port number listing
Port number lookup
PortSentry
PromiscDetect
QualysGuard vulnerability scanner
SMAC MAC address changer
SNARE
sniffdet
SNMPUTIL
SuperScan port scanner
TCP Wrappers
TrafficIQ Pro
UDPFlood
WhatIsMyIP
Wireshark
Password cracking
Advanced Archive Password Recovery
BIOS passwords
Brutus
Cain & Abel
Crack
Default vendor passwords
Dictionary files and word lists:
Elcomsoft Distributed Password Recovery
Elcomsoft System Recovery
John the Ripper
ophcrack
Pandora
Password Safe
Proactive Password Auditor
Proactive System Password Recovery
pwdump3
NetBIOS Auditing Tool
NIST Guide to Enterprise Password Management
NTAccess
RainbowCrack
Rainbow tables
SQLPing3
TSGrinder
WinHex
Patch management
BigFix Patch Management
Debian Linux Security Alerts
Ecora Patch Manager
GFI LANguard
Linux Kernel Updates
Lumension Patch and Remediation
Novell Patches and Security
Microsoft TechNet Security Center
Red Hat Linux Security Alerts
Slackware Linux Security Advisories
SUSE Linux Security Alerts
Windows Server Update Services from Microsoft
Security education and learning resources
Kevin Beaver's information security articles, whitepapers, webcasts, podcasts, and screencasts
Kevin Beaver's Security On Wheels information security audio programs
Kevin Beaver's Security On Wheels blog
Kevin Beaver's Twitter page
Security methods and models
Open Source Security Testing Methodology Manual
OWASP
SecurITree
Software Engineering Institute's OCTAVE methodology
Source-code analysis
Checkmarx
Fortify Software
Klocwork
Ounce Labs
Storage
CHAP Password Tester
CIFSShareBF
Effective File Search
FileLocator Pro
GFI LANguard
Google Desktop
GrabiQNs
Identity Finder
NASanon
StorScan
SuperScan
System hardening
Bastille Linux Hardening Program
Center for Internet Security Benchmarks
Deep Freeze
Fortres 101
How to disable SMTP relay on various e-mail servers
Imperva
Linux Administrator's Security Guide
PGP Whole Disk Encryption
Pyn Logic
SecureIIS
ServerDefender
TrueCrypt
User awareness and training
Awareity MOAT
Dogwood Management Partners Security Posters
Greenidea Visible Statement
Interpact, Inc. Awareness Resources
Managing an Information Security and Privacy Awareness and Training Program by Rebecca Herold (Auerbach)
NIST Awareness, Training, & Education resources
Security Awareness, Inc.
Voice over IP
Cain & Abel
CommView
Listing of various VoIP tools
NIST's SP800-58 document
OmniPeek
PROTOS
sipsak
SiVuS
vomit
VoIP Hopper
Vulnerability databases
Common Vulnerabilities and Exposures
CWE/SANS Top 25 Most Dangerous Programming Errors
National Vulnerability Database
Privacy Rights Clearinghouse's A Chronology of Data Breaches
SANS Top 20 Internet Security Problems, Threats, and Risks
US-CERT Vulnerability Notes Database
Wireless Vulnerabilities and Exploits
Absinthe
Acunetix Web Vulnerability Scanner
Brutus
Defaced Web sites
HTTrack Website Copier
Firefox Web Developer
Foundstone's Hacme Tools
Google Hack Honeypot
Google Hacking Database
NGSSquirrel
N-Stealth Web Application Security Scanner
Paros Proxy
Port 80 Software's ServerMask
SiteDigger
SWFScan
WebInspect
WebGoat
WSDigger
WSFuzzer
Windows
DumpSec
GFI LANguard
Microsoft Baseline Security Analyzer
Network Users
QualysGuard
Sysinternals
Winfo
Aircrack
AirMagnet WiFi Analyzer
AirSnort
Asleap
Cantenna war-driving kit
CommView for Wi-Fi
Digital Hotspotter
Elcomsoft Wireless Security Auditor
Homebrew WiFi antenna
KisMAC
Kismet
NetStumbler
OmniPeek
SeattleWireless Hardware Comparison page
Super Cantenna
Wellenreiter
WEPCrack
WiGLE database of wireless networks
WifiMaps
WiFinder
WildPackets' OmniPeek
WinAirsnort

PCs Glossary
AC power
Power that comes from an electrical outlet in the wall or power strip.

PCs Glossary
adapter card
A circuitry board that, when added to a computer internally, increases that computer’s capabilities; also called an expansion card.

PCs Glossary
Administrator account
An account for the manager of a computer or network. An Administrator account offers significantly more privileges in managing the PC compared to a Standard account.

PCs Glossary
AGP
Accelerated Graphics Port; a type of computer video expansion.

PCs Glossary
all-in-one
A type of inkjet printer that can also act as a scanner, fax machine, and copier.

PCs Glossary
application
A kind of software used for productivity or to create things (the software that does the work).

PCs Glossary
base station
A wireless hub, which connects a computer network.

PCs Glossary
Bluetooth
A type of wireless network standard used for short distances with devices such as cell phones and laptops.

PCs Glossary
broadband
Any high-speed Internet connection, whether provided through cable, DSL, or satellite.

PCs Glossary
broadcasting spectrum
The range of radio waves over which wireless devices communicate.

PCs Glossary
cable
A means of accessing the Internet that runs through your cable TV coaxial connection.

PCs Glossary
Caps Lock
A key on a keyboard that, when pressed to make active, causes letters to appear capitalized on the monitor’s display when you press the corresponding letter key on the keyboard.

PCs Glossary
capture card
A video upgrade card that can capture incoming analog video signal and convert it to digital video.

PCs Glossary
cartridge
The container that stores ink or toner for use in a printer.

PCs Glossary
Cat 5
A Category 5 networking cable used to connect a computer to a network hub.

PCs Glossary
CD
Compact disc; a removable storage medium that can hold data, text, and graphics.

PCs Glossary
CD/DVD recorder
A type of drive that you can attach to your computer in order to copy data from your PC to a recordable CD or DVD.

PCs Glossary
chassis
The metal frame on which your computer’s internal components and circuits are mounted.

PCs Glossary
chip
An integrated computer circuit containing many elements connected on a single unit.

PCs Glossary
chipset
A group of chips that work together to perform a specific task or function. For example, a motherboard on a computer contains chips for the BIOS, CPU, memory, expansion slots, and other components; this collection of chips is the motherboard’s chipset.

PCs Glossary
circuit
An electrical device that provides a path for electrical current to flow.

PCs Glossary
COM port
A legacy port found on the console’s I/O panel.

PCs Glossary
console
The main computer box, although it may also be called the system unit or the CPU (which is incorrect). It’s a box that contains your computer’s soul, its electronic guts. On the outside, the console sports various buttons, lights, and holes into which you plug the rest of the computer system.

PCs Glossary
controller
The circuits that control data transfer to and from a disk drive (floppy disk, hard disk, or optical disc).

PCs Glossary
corona wire
A charged wire in a laser printer that draws the toner off the drum onto the paper.

PCs Glossary
CPU
Central processing unit; A computer component, often called a processor and microprocessor, whose speed determines how fast your PC operates.

PCs Glossary
CRT
Cathode ray tube; an older type of computer monitor that offers better color quality than an LCD monitor.

PCs Glossary
cursor
The blinking icon on the computer screen that shows you where the characters you type appear; also called an insertion pointer.

PCs Glossary
DAT
Digital audiotape; A type of computer backup drive that copies data to a tape.

PCs Glossary
DC power
Power that comes from the battery that powers a laptop.

PCs Glossary
DDR
Double data rate; A computer DIMM memory module that’s still in general use.

PCs Glossary
DDR2
Memory modules that double the data transfer rate between your RAM and your motherboard.

PCs Glossary
desktop
A normal computer setup; A type of computer made up of a PC console, monitor, mouse, keyboard, and any additional attachments. A desktop PC isn’t easily portable.

PCs Glossary
dialup
A kind of computer Internet connection that uses existing phone lines.

PCs Glossary
digital
A means of storing, transmitting, manipulating, or reproducing data, images and sounds by using groups of electronic bits represented by 1 and 0.

PCs Glossary
DIMM
Dual Inline Memory Module; A standard type of computer memory module.

PCs Glossary
DIMM slot
Dual in-line memory module slot, a small circuit board that holds memory chips.

PCs Glossary
DirectX
A driver used by games, graphics, and audio programs in Windows.

PCs Glossary
disk drive
A component of a computer that reads information from and writes information to a certain kind of disk.

PCs Glossary
display
The information that appears on your computer screen.

PCs Glossary
drive cage
A contraption used to hold a PC’s internal disk drives, an optical (DVD) drive, and a hard drive.

PCs Glossary
driver
A special type of program that allows specific computer hardware to work.

PCs Glossary
DSL
Digital Subscriber Line; a type of Internet connection that takes advantage of unused frequencies in existing phone lines.

PCs Glossary
dual-core
A CPU made up of two independent processors combined onto a single integrated circuit.

PCs Glossary
DV
Digital video; used to describe camcorders that record video digitally.

PCs Glossary
DVD
Digital video disc; a removable computer storage medium that has a larger capacity than a CD.

PCs Glossary
DVD drive
A disk drive in or attached to your computer that can read information from DVDs and CDs.

PCs Glossary
dye-sublimation
A type of printer that transfers heated solid due from a ribbon to specially coated paper, producing continuous tones, like those in a photo produced from a negative.

PCs Glossary
Dynamic Host Configuration Protocol DHCP
A protocol for assigning dynamic IP addresses to devices on a network.

PCs Glossary
EDO
Extended Data Output; an older type of computer memory module that’s used on only old Pentium motherboards.

PCs Glossary
EIDE
Enhanced Integrated Drive Electronics; a type of hard drive.

PCs Glossary
ergonomics
Adapting work or working conditions to suit the worker.

PCs Glossary
Ethernet
The standards and protocols used by Windows for networking.

PCs Glossary
expansion card
A circuitry board that you can add to a computer internally to expand that computer’s capabilities.

PCs Glossary
expansion slot
A slot on a computer’s motherboard available for adding expansion cards, which add new components to the PC.

PCs Glossary
external device
Another name for a peripheral.

PCs Glossary
feeder tray
A component of a printer in which you place paper that you want the printer to take and print on; also called a paper feed.

PCs Glossary
fiber optic
A technology that sends data as light at high speeds and in large amounts.

PCs Glossary
file
A binary (not physical) container that holds a chunk of information stored in a computer.

PCs Glossary
firewall
A software or hardware device designed to block unauthorized intruders from gaining entry to an individual computer or a network.

PCs Glossary
FireWire
A type of computer connection that you can use to attach various devices to your PC; most often used to connection DV camcorders.

PCs Glossary
FireWire port
Same as IEEE 1394 port.

PCs Glossary
flash drive
A keychain-size storage unit that saves files on memory cards; you can plug it into your computer and access it like any other external hard drive.

PCs Glossary
flash memory
A special type of computer memory that works like both RAM and ROM; information can be written to flash memory, but that information isn’t erased when the power is off.

PCs Glossary
force feedback
When a game controller rumbles or provides resistance to your hand that matches the action on-screen.

PCs Glossary
FSB
Front Side Bus; the primary pathway between a computer’s CPU and memory.

PCs Glossary
game controller
A device that you attach to your computer that allows you to input movement and actions when playing a computer game.

PCs Glossary
gamepad
A game controller that features a flat surface and many buttons.

PCs Glossary
GPU
Graphics processing unit; the chipset used on your PC’s video card.

PCs Glossary
graphics adapter
The circuitry that runs the computer monitor and controls the image that the monitor’s screen displays.

PCs Glossary
graphics system
A computer’s monitor and graphics adapter.

PCs Glossary
hard drive
A disk drive on your PC that can store the greatest amount of information and access it in the quickest manner; therefore, it’s the main source of permanent storage.

PCs Glossary
hardware
The physical part of a computer — anything you can touch and see, such as the computer console, monitor, keyboard, and mouse.

PCs Glossary
Headphones/speakers jack
The I/O jack where you plug in your headphones or external speakers.

PCs Glossary
headset
Headphones that include a built-in microphone for online communications and game playing.

PCs Glossary
hibernate
A computer function by which it saves all the computer’s memory (everything the system is doing), then turns the computer off.

PCs Glossary
hub
A common connection point for devices in a network.

PCs Glossary
Hyper-Threading
A feature of certain Pentium processors that makes one physical CPU appear as two logical CPUs, overlapping two instruction streams in order to achieve a gain in performance.

PCs Glossary
IEEE 1394 port
Also called FireWire; a type of connection that you can use to attach various devices to your computer, similar to USB.

PCs Glossary
impact printer
A type of computer printer that uses an ink ribbon and some device to physically bang the ribbon on the paper.

PCs Glossary
inkjet printer
A type of computer printer that lobs tiny balls of ink directly on the paper to create a printout.

PCs Glossary
insertion pointer
The blinking icon that appears on your computer screen at the location where characters you type appear; also called a cursor.

PCs Glossary
I/O
Input/Output; the two kinds of activity that a computer engages in — it accepts input from outside devices and gives you output information in a variety of forms.

PCs Glossary
IP address
An identifier for a computer or device on a TCP/IP network.

PCs Glossary
IrDA port
An infrared computer port that can be used to communicate with devices such as PDAs and other laptops.

PCs Glossary
ISA
Industry Standard Architecture; the oldest type of computer expansion slot, used now mainly for compatibility with older expansion cards.

PCs Glossary
keyboard
The device you type on; it’s the primary way you communicate with the computer, with input.

PCs Glossary
label printer
A specialized, small printer that can create all kinds of labels on label tape.

PCs Glossary
laptop
A portable computer.

PCs Glossary
laser printer
A type of computer printer that uses a laser beam to create the image, giving a crisp and fast output.

PCs Glossary
LCD
Liquid crystal diode; A type of computer monitor, also called a flat-panel monitor, that’s thin and uses relatively little electricity.

PCs Glossary
LED
Light Emitting Diode; a display and lighting technology used in almost every electronic product.

PCs Glossary
legacy port
A specific port on older PCs to which you would connect a keyboard, mouse, or printer. These ports have been gradually phased out on PCs and replaced by the versatile USB port.

PCs Glossary
line in jack
The I/O panel jack where you plug a traditional audio-producing device (stereo, VCR, and so on) into the PC for capturing sound.

PCs Glossary
local-area network LAN
A computer network that spans a relatively small area. Most LANs are confined to a single building or group of buildings.

PCs Glossary
log in
To identify yourself on a computer by entering a user name and password.

PCs Glossary
log off
To tell Windows that you’re done using the computer without actually turning off the computer; you must log in to use it again.

PCs Glossary
log on
To identify yourself on a computer by entering a user name and password.

PCs Glossary
log out
To tell Windows that you’re done using the computer without actually turning off the computer; you must log in to use it again.

PCs Glossary
memory
Temporary computer information storage which is emptied when you turn off the computer; also called RAM. The term "memory" also refers to the physical chips capable of holding data.

PCs Glossary
memory card
The most recent form of permanent computer storage technology. The general term applies to all the different types of solid-state storage devices. Six main types of memory cards are available.

PCs Glossary
memory module
A narrow printed circuit board that holds memory chips.

PCs Glossary
microphone jack
The I/O jack in which your computer’s microphone plugs into.

PCs Glossary
microprocessor
Your computer’s main hardware chip that determines the speed at which your computer can work; also called the processor and CPU.

PCs Glossary
MIDI
Musical Instrument Digital Interface; rather than digital audio, a MIDI file gives the computer directions on how to play a song — kind of like how a program is a set of directions that tells your computer how to accomplish a task.

PCs Glossary
Mini 1394 port
This special version of the IEEE 1394 connector is designed specifically for digital video and for connecting digital cameras.

PCs Glossary
mini-DIN
A standard computer connector used to connect a microphone to your PC.

PCs Glossary
mini-tower
The most popular PC configuration, where the desktop computer sits upright on a desktop or tucked away below the desk.

PCs Glossary
modem
Modem is a contraction of modulator-demodulator. A device that converts digital data from a computer into analog data for transmission over telephone lines by modulating it into waves. At the other end, a modem converts the analog data back into digital form by demodulating it. Cable modems also convert data but that information may stay in digital form.

PCs Glossary
modem port
Where you connect your PC’s dialup modem to the phone jack in the wall. If two phone or modem holes are on the I/O panel, the second one is for a telephone extension.

PCs Glossary
modifier key
A key on a keyboard that works in combination with other keys to do various tasks.

PCs Glossary
modular
Being made up of a number of individual pieces that can each be replaced without having to change the whole.

PCs Glossary
monitor
The box and hardware that make up the part of your computer that displays information, it's output.

PCs Glossary
motherboard
The main circuit board of a microcomputer, which contains essential PC components, such as the processor and memory.

PCs Glossary
mouse
A helpful device that lets you work with graphical objects that the computer displays on the monitor.

PCs Glossary
mouse pad
A device built into a laptop that emulates a standard mouse. Also called a touch pad.

PCs Glossary
MP3 card
A specialized sound card that contains a hardware encoder/decoder, which speeds up your PC’s ripping and MP3-playing performance.

PCs Glossary
MP3 player
A portable device that allows you to listen to your songs when you’re away from your PC.

PCs Glossary
MPEG card
A video card specifically designed for encoding and decoding Motion Picture Experts Group digital video (usually from a DVD).

PCs Glossary
network
A group of two or more computer systems linked together. Components of a network include a networking adapter, cables, and a hub.

PCs Glossary
network port
Where you plug in a local-area network (LAN) connector or where you attach a broadband modem to the PC’s I/O panel.

PCs Glossary
networking adapter
A device that interfaces a PC with a network.

PCs Glossary
NIC
Network information card; Ethernet networking hardware that your computer requires to connect to a network.

PCs Glossary
notebook
Another name for a laptop.

PCs Glossary
NTFS
New Technology File System. The standard file system used for Windows NT, 2000, XP, and Vista. NTFS is preferred to the older FAT32 system. NTFS improves system performance, reliability, and disk space use, and it also offers improved security. For example, you can set permissions for individual files as well as directories to control access by other users.

PCs Glossary
Num Lock
A key on a computer keyboard that, when pressed to make active, makes the numeric keypad on the right side of the keyboard produce numbers. When the Num Lock key is inactive, you can use the numeric keypad for moving the text cursor.

PCs Glossary
numeric keypad
The keypad that allows you to type numbers when the Num Lock key is on.

PCs Glossary
OCR
Optical character recognition; a program that allows the computer to read text from a scanned item and convert it to text that you can edit.

PCs Glossary
OpenGL
Open Graphics Language; a 3D graphics language developed by SGI, which has become a de facto standard supported in Windows (among other) computers.

PCs Glossary
output
Anything that the computer produces.

PCs Glossary
palmtop
A small hand-held, battery-operated computer.

PCs Glossary
paper feed
The portion of a computer printer in which you store the paper that the printer eventually prints on; also called a feeder tray.

PCs Glossary
paper output tray
The location on a computer printer where the printer paper comes out and is stacked.

PCs Glossary
parallel port
A computer connection that used to be the primary means of connecting a printer to your computer; still used with some printers and peripherals.

PCs Glossary
PC Card
Frequently found on laptops, this credit-card-size card contains a hard drive that you can insert into a PC slot to grab data you want to transport.

PCs Glossary
PCI
Peripheral Component Interconnect; the most common form of internal expansion for a PC.

PCs Glossary
PCI Express
The next generation of PCI PC expansion that communicates with the motherboard quickly and efficiently.

PCs Glossary
PDA
Personal digital assistant; a handheld computerized device.

PCs Glossary
peer-to-peer network
A type of network, often found in small and home offices, in which each workstation has equivalent capabilities and responsibilities.

PCs Glossary
pen scanner
A hand-held, pen-shaped scanner with which you can re-create drawings or text as image files.

PCs Glossary
peripheral
A device, such as a CD-ROM drive or printer, that is not part of the console. Peripheral devices can be external — such as a mouse, keyboard, printer, monitor, or scanner — or internal, such as a CD-ROM drive, CD-R drive, or internal modem.

PCs Glossary
photo printer
A computer printer specifically designed to create photographs that rival traditional 35mm prints.

PCs Glossary
plenum cable
A type of network cable that’s designed to withstand high temperatures, such as inside a heating duct.

PCs Glossary
port
A place on a computer where you can attach a device to send and/or receive information.

PCs Glossary
port card
An adapter card that you can insert into your PC to add computer ports.

PCs Glossary
power strip
A device that provides approximately six electrical outlets into which you can plug your console and peripherals. The power strip also usually provides protection against power spikes and surges.

PCs Glossary
printer
Where you get the computer’s printed output, also called hard copy.

PCs Glossary
process
The action that a computer takes on input to produce a different output.

PCs Glossary
processor
The component of a computer that handles the processing work the computer does; also called a CPU and a microprocessor.

PCs Glossary
program
A type of software that may or may not be used for productivity or to produce output, such as a computer game or a video editing program.

PCs Glossary
PS/2 port
A type of connection dedicated to the kind of keyboard and mouse that feature this connector.

PCs Glossary
RAM
Random access memory; a computer component that allows you to store data.

PCs Glossary
RDRAM
Rambus memory modules are much faster than the standard DDR modules, but are being replaced by DDR2 modules.

PCs Glossary
reboot
To restart your computer.

PCs Glossary
recharging cradle
A base connected to a power outlet into which you can place a device that runs on rechargeable batteries in order to recharge those batteries.

PCs Glossary
resolution
The number of pixels that your monitor’s display can show, both horizontally and vertically.

PCs Glossary
resource
Something that a computer uses to get work done, such as memory or processor power.

PCs Glossary
ROM
Read-only memory; Permanent memory that can’t be altered by the microprocessor.

PCs Glossary
router
A sophisticated device used to connect your network; it can manage hundreds of networked computers and handle Internet traffic.

PCs Glossary
RSI
Repetitive stress injury; a physical condition caused by putting too much strain on a joint of the body.

PCs Glossary
satellite
One of the fastest means of connecting to the Internet, by using an outdoor antenna and a subscription to a satellite service.

PCs Glossary
scanner
A device that attaches to a computer and can create a graphics file of an object you place on the scanner (much like a photocopier, only a scanner produces a file rather than a paper copy).

PCs Glossary
screen
The part of the computer monitor on which information is displayed.

PCs Glossary
screen resolution
Signifies the number of dots (pixels) on the entire screen.

PCs Glossary
SDRAM
Also called SyncDRAM, these memory modules take the form of standard DIMMs. This kind of module is too slow for current PC use.

PCs Glossary
serial port
An older kind of versatile computer port that can connect a variety of devices to the PC; it has been largely replaced with USB ports.

PCs Glossary
Service Set Identifier SSID
A 32-character unique identifier attached to the header of packets sent over a network that acts as a password when a mobile device tries to connect the network.

PCs Glossary
SIMM
Single Inline Memory Module; a type of memory module that often needs to be added in pairs.

PCs Glossary
Sleep mode
A state in which the computer slips into a special, power-saving setting, like going into a low-power coma.

PCs Glossary
software
Instructions that tell the computer hardware what to do or how to act; the brains of the computer.

PCs Glossary
sound card
A circuit-filled gadget that plugs inside your PC to add music and explosions to computer games.

PCs Glossary
spatial imaging
A sound card feature that creates a 3D feeling to the sound being produced by your computer.

PCs Glossary
SPDIF
A computer connection, which requires special fiber optic cable, that’s used for digital audio.

PCs Glossary
SPDIF port
I/O panel connectors used for digital audio. Special fiber-optic cable is required: Audio coming into the computer plugs into the In hole; the sound the computer generates goes out the Out hole.

PCs Glossary
speakers
Devices that emit sound from your computer. Speakers can be external, built into the console or the monitor, or even headphones.

PCs Glossary
standard
Specifications about how a group of network devices communicate.

PCs Glossary
stylus
A kind of mouse that looks like a pen and draws on a special pad, which translates to the computer display.

PCs Glossary
subwoofer
A speaker box designed for low-frequency sounds, which gives oomph to the bass in music or adds emphasis to the sounds in games.

PCs Glossary
surge protector
A special type of power strip that helps fight irregularities in the electrical supply that runs to your computer.

PCs Glossary
surround left/right jack
For surround sound, this is the I/O panel jack into which you plug the rear left and right speakers.

PCs Glossary
surround sound
3D environmental audio, created by a set of speakers positioned around the listener.

PCs Glossary
S-Video
A type of computer connection that allows you to attach an S-Video monitor, video recorder, or television to your PC.

PCs Glossary
switch
A device that connects computers in a network and manages the signals between those computers.

PCs Glossary
system unit
The main box of the PC; also called the console. It’s a box that contains your computer’s soul, its electronic guts. On the outside, the console sports various buttons, lights, and holes into which you plug the rest of the computer system.

PCs Glossary
time server
A computer designed to give accurate time information for any computer that checks in on the Internet.

PCs Glossary
toner
A powdery ink substance that comes in a cartridge; used by laser printers.

PCs Glossary
TOSLINK
A standard optical computer connector that creates high-quality sound reproduction.

PCs Glossary
tower
A PC configuration that has essentially a full-sized desktop console standing on its side, usually on the floor; includes a lot of room for expansion.

PCs Glossary
trackball
A kind of upside-down mouse; you use your thumb or index figure to roll a ball on top of the mouse, while the whole contraption stays stationary.

PCs Glossary
uninterruptible power supply UPS
A power strip combined with a battery to keep your computer running when the power goes out.

PCs Glossary
upgrade
A complete revision of a computer program that you use to replace the current program.

PCs Glossary
UPS
Uninterruptible power supply; basically, a power strip combined with a battery to keep your computer running for a short time when the power goes out.

PCs Glossary
USB
Universal Serial Bus; a computer connection that you can use to attach many different kinds of devices and peripherals to a computer.

PCs Glossary
utility
A type of computer program that’s designed to help you manage the computer, or diagnose or fix problems.

PCs Glossary
versatile port
The term for the original PC’s serial port.

PCs Glossary
VGA
Video Gate Array; a name used to describe graphics adapters.

PCs Glossary
video card
The circuitry that controls the image appearing on the monitor’s screen; also known as a graphics adapter.

PCs Glossary
Video/VGA port
The I/O port where you plug in your monitor.

PCs Glossary
Vista
The most recent version of the Windows operating system.

PCs Glossary
WAP
Wireless access point; a device that brings wireless connectivity to an existing wired network.

PCs Glossary
webcam
A video camera that attaches to your computer and allows you to upload images or video to the Web.

PCs Glossary
WEP
Wired Equivalent Privacy; the encryption for a computer network.

PCs Glossary
wide-area network WAN
A computer network that spans a relatively large geographical area. Typically, a WAN consists of two or more local-area networks (LANs).

PCs Glossary
WiFi
Wireless fidelity; the original 802.11b standard wireless base station.

PCs Glossary
Windows
The most common operating system on PCs.

PCs Glossary
Wired Equivalent Privacy WEP
A security protocol for wireless local-area networks.

PCs Glossary
wired network
A network connected by cables.

PCs Glossary
wireless
Making a connection between computers or a computer and devices without physically connecting them with wires or cables; usually involves using radio signals to send and receive information.

PCs Glossary
Wireless Access Point WAP
An intermediary device that exchanges information between various configured wireless devices.

PCs Glossary
wireless network
A network that features specific equipment, such as network interface cards and routers, in place of wires (copper or optical fiber) for connectivity.

PCs Glossary
word processor
A computer program in which you generate, edit, store, transmit, or duplicate electronic text documents.

PCs Glossary
workgroup
Workgroup computing occurs when all the individuals have computers connected to a network that allows them to send e-mail to one another, share data files, and schedule meetings.

PCs Glossary
ZIF
Zero insertion force; a type of socket designed for easy insertion in which a lever is pulled down to lock the chip in place.

PCs Glossary
Zip
A type of file compression where one or more files can be placed into a single file archive, which is digitally compressed to take up less room on the hard drive.