GB (Gigabyte)
Unit of measurement for pieces of information : approximately 1 billion bytes, 1 million kilobytes, or 1000 megabytes. The gigabyte is the largest measure in common use today. Often shortened to "GB", "Gig" or just G.
GHz (Gigahertz)
Billions of cycles per second. Often used as a measurement of a PC processor chip's speed and power, with bigger numbers meaning a bit more speed, and a higher price. 1000 MHz = 1.0 GigaHertz. See also MHz.
GIF (Graphics Interchange Format)
The GIF image format was developed by Compuserve and is widely used on the Internet due to its high compression (provided by Unisys) and subsequent small file size.
GIF files can be interlaced and animated making them a popular choice for web designers, however, due to the format being limited to only 256 colours the JPEG image format is used for more colour demanding images such as photos.
GIF files have the .gif file extension and can be created and/or edited in most popular graphics applications such as Paint Shop Pro.
Animated GIFs which are essentially static images put in a sequence to create the animation can be created in programs such as Macromedia Flash.
GUI (Graphical User Interface)
This is used to describe a user friendly environment which uses graphical images (such as icons) instead of a command line to interact with the computer, GUIs have made computers more user friendly and more accessible to any user no matter what experience they may have, a typical GUI is the Windows. operating system.
