Gateway

A computer used to provide translations between different types of standards. Generally refers to computers that translate complex protocol suites; for example, different E-mail messaging systems. Currently, it has been used to describe a 'door' from a private data network to the Internet.

Gbps

Gigabits per second. A measure of bandwidth and rate of data flow in digital transmission.

Gb

Gigabyte. A measure of the storage capacity and memory of a computer. One gigabyte is equivalent to 1.074 billion bytes or 1,000 Mb. Usually used to express a data transfer rate, (1 gigabit/second=1 Gbps). The bandwidth of optical fiber is often in the gigabit or billion-bits-per second range.

Ghz

Gigahertz. One billion cycles per second. It measures analog signal transmission.

GIF

Graphical Interface Format. A typical graphics or image file commonly used on the Web that is most effective when the graphic or image is not a photograph.

Geostationary Orbit

Refers to the orbit of a satellite whose location relative to the earth's surface is constant so it seems to hover over one sport on the earth's equator.