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General Packet Radio Service (GPRS)
An emerging technology that sends packets of data across wireless networks at speeds of up to 114 kilobits per second. Users can send and receive information without dialing in.

General-purpose languages (GPLs)
Languages like Cobol, Fortran or C that skilled programmers can use to build almost any application.

Gigabyte
A group of bytes generally defined as either 1,000 or 1,024 megabytes.

Gigahertz (GHz)
One billion cycles per second. As one moves above the millimeter waves, signals begin to take on the characteristics of lightwaves.

Global System for Mobile Communications (GSM)
A standard for how data is transferred through the wireless spectrum. GSM is the European standard and is also used in Asia.

Gopher
A way of making menus of material available over the Internet. This is a client-and-server form of program, meaning that the user must have a gopher client program in order to utilize it.

Graphic Interchange Format (GIF)
A widely used format for image files.

Graphical user interface, (GUI)
An interface to an application that allows users to do things by clicking on a visual screen, as opposed to typing commands on a line. GUIs (pronounced "gooey") feature the following components: a pointing device (such as a mouse), icons, windows and menus.

Groupware
Software that helps groups of people who work on a network communicate electronically and share data, such as email, meeting scheduling and file distribution applications.