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Term Definition
ADSL
Type of Broadband internet, a high-speed connection. It receives digital information at up to 560 kbps, 10 times faster than a normal dial-up modem and is always-on. 

ADSL requires a special ADSL modem.
 
Adware
A form of Spyware which installs a program which generates advertising in the web browser based on information it collects from the user's browsing patterns. eg, Pop-up advertisements.
 
Antivirus
A program that protects your computer against viruses. Antivirus can also scan your computer and clean files infected by harmful viruses. Most antivirus programs automatically download new virus information from the internet so that it can check for the new viruses as soon as they are discovered.
 
 
Backup
Process of copying files onto disk or CD-Rom for safekeeping so that they are kept in more than one place.
 
Bandwidth
The amount of data that can be carried per second by your internet connection. Usually measured in kilobytes per second (kbps).
 
Blog
Short for Weblog, is a web page that contains dated entries similar to a diary or personal journal. Blog entries can be written by one author or by a group of contributors.
 
 
bps
Bytes per second. The measurement of how fast data can be sent over a phone line or on a network line.
 
Broadband
A high-speed internet connection. It receives digital information at up to 560 kbps, ten times faster than a normal modem and is "always-on".

Cable or ADSL is a type of broadband.
 
 
Browser
A program you use to view web pages and 'browse' websites.

Mozilla Firefox and Internet Explorer are popular Browsers.
 
 
Byte
Bytes are used to measure amounts of computer data. 

One byte is roughly the same as one character (letter) of text. One KB (or one K) is approximately 1,000 bytes, one MB is approximately 1,000 KB, and one GB is approximately 1,000 MB.
 
Cache
A part of your RAM (memory) which stores information commonly accessed and required by your computer programs instead of accessing the information from your hard disk memory which is much slower than RAM memory.

In another example your browser uses a cache to store web pages you have seen already. When you go back to those pages they will load more quickly because they come from the cache and don't need to be downloaded over the internet again.
 
CDRW
CD Rewritable. Unlike a normal writable CD, CDRW can be rewritten many times.
 
Compressed
Compressed files are electronically "squeezed" so they take up less memory or space on your disk. This makes them quicker to send over the internet.
 
Cookie
A small file which websites place on your hard drive so they can recognise you the next time you come to their website.
 
CPU
Central Processing Unit - the 'brain' or engine of the computer.
 

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