Gateway
An entry and exit point to a network; they are most commonly used to transfer data between a private LAN and the Internet
GIF (Graphics Interchange Format)
An image format widely used on the World Wide Web due to its small file sizes. The compression used on GIF images result in smaller file sizes but no loss in image quality. GIFs can also be animated
Gigabyte
A thousand million bytes (1000 MB)
GHz
Unit of frequency used to measure CPU speed. 1 GHz is equal to 1000 MHz
GPRS (General Packet Radio Service)
An 'always on' internet connection via your mobile phone with speeds up to 150Kbit/s, significantly quicker than the previous GSM standard of 9. 6Kbit/s
GPS (Global Positioning System)
A network of satellites orbiting the earth, used to pinpoint an exact position on the planet. Its most common use is modern in-car navigation systems like TomTom
GPU (Graphics Processing Unit)
A processor located on the graphics card designed especially for processing visual elements of the PC. This takes away much of the graphics processing load from the main CPU and helps to deliver superior 3D graphics, while improving overall system performance
Graphics Card
The component in the computer that takes care of the visual display i.e. the view you seen on the monitor
GUI (Graphical User Interface)
An interface that allows the user to issue commands to the computer by clicking on graphical icons rather than typing them in via the keyboard
