Jargon Buster

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AAC
Advanced Audio Coding. A type of lossy compressed music file that’s more efficient than mp3 (better quality for same size file).
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Access point
Links wireless network users to a wired network.
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Address bar
An area of a web browser into which internet addresses can be typed. Pressing enter then directs the browser to that exact page. The address bar is sometimes confused with a search bar. Typing addresses into a search field will produce a list of websites that may or may not match what you are looking for.
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ADF
Automatic Document Feeder. A device that feeds each page of an original document into a photocopier or scanner, one by one.
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ADSL
Asymmetric Digital Subscriber Line. A technology that converts a standard phone line into a broadband internet connection.
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ADSL2
A newer, faster type of ADSL broadband.
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Adware
Software that displays adverts.
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Aero
The technology that provides fancy window effects in Windows 7 and some versions of Vista.
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AGP
Accelerated Graphics Port. A slot used to connect graphics cards in older computers.
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AI
Artificial Intelligence. A computer program designed to mimic the behaviour of humans or animals.
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AIFF
Audio Interchange File Format. A digital audio format often associated with Apple Mac computers.
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Ajax
Asynchronous Javascript and XML. A technology that allows websites to fetch fresh information from the web without loading a new page.
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Amoled
Active-matrix organic light-emitting diode. A type of flat-panel display technology where each pixel/sub-pixel is self illuminating, negating the need for a backlight like on LCDs. The technology allows for very thin displays, which are low power and – as each pixel can be turned off completely – have very high contrast. They’re commonly found in phones and cameras and will soon be the choice for TVs too.
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Analogue
A signal whose value can be any point within set bounds, as opposed to a digital signal which is either on or off.
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Android
An operating system for portable computers and mobile phones, developed by Google, based on the Linux system and freely available for anyone to use and tinker with.
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Animated GIF
A type of image file format that can store multiple frames along with a time of when to show each frame. It can be used to create simple animations, often used online to add animation to a webpage.
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Annotation
A comment on a document, rather like a note jotted down on a paper document.
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Anti-virus
Software that protects against and removes computer viruses.
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Aperture
An opening that controls the amount of light entering a camera lens.
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API
Application Programming Interface. A system built into a program so that other programs can work with it.
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App
A small program designed to run on a phone or handheld computer (short for application). Could be a game, utility or any other type of program.
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Applet
A small program, often one that runs within a larger program to perform a specific task.
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Application
A computer program that performs a specific task, such as Microsoft Word for creating documents.
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Aspect ratio
A measurement of the shape of a display. Traditional computer screens are 4:3. Widescreen displays are 16:9 or 16:10.
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ATRAC
Adaptive Transform Acoustic Coding. A type of music file used by some older Sony players.
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Attachment
A computer file, such as a word-processing document, sent along with an email.
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Audible
A company that sells downloadable audio books. Also used to describe the files it uses.
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Audio book
A book read aloud and recorded on tape, CD or as a digital file.
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Autocorrect
A technology that corrects words as you type them.
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Autoplay
A Windows feature that allows a program to be automatically started when a disk is connected to a computer
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Autosum
A tool in Excel that provides a quick total of the selected cells.
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Autotrace
A tool in some photo editors that attempts to trace an image, converting it into vector graphics that can be resized.
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AV
Audio/Visual. Anything to do with devices that can show/record video or play/record sound.
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Avatar
A graphic or icon used to represent a computer user, either online or in a video game.
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AVCHD
Advanced Video Coding High Definition. A standard for storing high-definition video. AVCHD discs can be played by most Blu-ray players.
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AVI
Audio Video Interleave. A type of video file. AVI is known as a container format, as it can hold many types of audio and video.
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AV Sender
A device that sends audio and video signals wirelessly.