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Access point
Wireless communication hub that allows users to connect to a Wi-Fi network.
ActiveX
Technology for adding extra features to an application like a web browser. ActiveX components are usually downloaded automatically, or with minimal user interaction.
Add-in
Extra features available in most Microsoft applications, but usually requiring installation from the original CD-ROM. For example, Excel's AutoSave feature is an Add-in module, and is only installed upon request.
ADSL
Stands for Asymmetric Digital Subscriber Line. A technology that converts an ordinary household telephone line into an extremely fast internet connection -- around ten times faster than a regular 56K modem.
AGP
Accelerated Graphics Port. A PC interface (either an expansion slot or built-in) used for super-fast 3D graphics facilities. Ideal for handling the 3D worlds depicted in many of today's top games.
Anti-virus software
An application designed to protect PCs from malicious computer code.
Application
A computer software program that enables the user to perform specific tasks. For example, Microsoft Word is used for word processing, while Paint Shop Pro is designed for image-editing requirements.
ATAPI
Stands for Advanced Technology Attachment Packet Interface, which is a control technology for devices like CD-ROM and hard disk drives.
Attachment
A computer file, such as a word-processor document or spreadsheet, sent along with an email message.
Audio Format
In the context of Windows' Sound Recorder program, the choice of storing recorded audio in one of three quality settings CD, radio or telephone.
Autocorrect
A feature in a word processor that automatically corrects common spelling mistakes as they are typed.
Automatic document feeder (ADF)
A facility of most printers and some scanners, enabling documents to be automatically fed through the print or scanner mechanism without user intervention.
Autoplay
A Windows feature that allows CD-ROM/DVD discs to launch or play as soon they're inserted into a drive.
AVI
A type of video file used by windows and usually played using Windows Media Player.