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Gigabyte or Gb see Byte
GIF and JPEG
Image file formats used on Webpages, e.g. imagename.gif or imagename.jpg. Other image file formats cannot be viewed on Webpages, e.g. .bmp or .psd files or clipart. Files in these other formats must be converted to .gif or .jpg using a graphics package
Google
A popular search engine for finding content on the web: webpages, images, documents etc. To find definitions of computer terms on Google, enter define: then the word you want defined, e.g. define: blog. Google then displays all the definitions it finds on the web. Go to Google
Graphics - see Images
Group or Community
The terms Group and Community are used interchangeably at mc². Each group has a range of features: a chat room, forum, guestbook etc.
Greylisting
A way to block spam based entirely on the behaviour of the sending server; the content of the message is irrelevant. Greylisting is complementary to other spam filtering techniques such as blacklisting. At its simplest, Greylisting looks at the envelope sender address, the recipient address, and the sending IP address, and defers delivery if these haven't been seen together before; spammers don't usually retry.
See also: SPAM (Unsolicited Email)
GUI - Graphical User interface
A graphics-based user interface that incorporates icons, pull-down menus and a mouse. This allows the user to click and point, as opposed to a command-line program, which is driven by text commands entered via keyboard. The Windows operating system uses a GUI, whereas DOS relied on the user typing commands.
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