A device that connects a computer network to other networks or services. Data transmitted from the network leaves via the gateway, while data being received enters through it. Gateways can often enable computers not able to communicate directly with other computers on different networks to do so easily.
Gearing
The ratio between a business's equity and debt.
GIF
A Graphic Interchange Format file can be used to save simple graphics, such as line art, logos and icons, Many such images published on web pages are in the GIF format.
Gigabyte (Gb)
Approximately 1,000 Megabytes.
GPRS
The General Packet Radio Service extends the GSM mobile data system by using multiple slots of the radio channel to achieve faster transmission speeds. This makes it easier and more practical to send and receive data between mobile devices.
Graphics tablet
A device consisting of a flat pad and an electronic stylus which artists can use like a pen or brush to "paint" or create computer graphics just as if they were committing an image to paper. A graphics tablet can accomplish this more easily and accurately than a mouse.
GSM
Global System for Mobile Communications became the established standard for mobile phone networks in the 1980s in Europe and other areas of the world. GSM uses the subscriber identity module (SIM) card, which holds a user’s identification details, and can theoretically be swapped between any compatible GSM mobile phone.
GUI
The Graphical User Interface has broadened the use of computers by making them easier to use for non-technicians. The (ironically over-complex) term Graphical User Interface refers to the way in which information is displayed as icons in on-screen windows with pull-down menus from which users can select specific options by pointing a mouse and clicking its button. Such systems often rely on the intuition of users, leading them through processes without the need for an instruction manual or intensive training.
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