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The PC Glossary

Definitions of Computer and Internet Terms

Computer Terms Beginning with "G"

Gamma Correction Gamma correction is used to alter the output levels of a display. Since the standard input signal (or voltage level...
Gateway A gateway is either hardware or software that acts as a bridge between two networks so that data can be transferred...
Gibibyte A gibibyte is a unit of data storage that equals 2 to the 30th power, or 1,073,741,824 bytes. While a gigabyte can...
GIF The letters "GIF" actually stand for "Graphics Interchange Format," but you don't need to remember that. What you...
Gigabyte A gigabyte is 2 to the 30th power, or 1,073,741,824 bytes. It can be estimated as 10 to the 9th power, or one...
Gigaflops Gigaflops is a unit of measurement that measures the processing power of a processor's floating point unit, or FPU...
Gigahertz One gigahertz is equal to 1,000 megahertz (MHz) or 1,000,000,000 Hz. It is commonly used to measure computer...
GIGO Stands for "Garbage In, Garbage Out." It means that if invalid data is entered in a computer program, the resulting...
GIS Stands for "Geographic Information Systems." GIS tools are used to gather and analyze data about the surface of the...
GNU GNU (a recursive acronym for "GNU's Not Unix") is a Unix-like (operating system|operating_system) that is available in...
Gnutella Gnutella is a file sharing network that allows users to send and receive files over the Internet. The first part of...
Golden Master Golden master is the final stage of the software development process. It describes the "Release to Manufacturing" or...
Goodput Goodput sounds like a golf term that describes sinking a 20 foot birdie putt. However, in the computer world, goodput...
Google Google is the world's most popular search engine. It began as a search project in 1996 by Larry Page and Sergey Brin...
Google Drive Google Drive is a service offered by Google that allows you to store and share files online. The service was launched...
Gopher The Gopher technology was invented at the University of Minnesota, whose mascot is, not surprisingly, the Golden...
GPS Stands for "Global Positioning System." GPS is a satellite navigation system used to determine ground position and...
GPU Stands for "Graphics Processing Unit." Like the CPU (Central Processing Unit), it is a single-chip processor...
Graphics Computer graphics are images displayed on a computer screen. They can be either two or three-dimensional...
GUI Stands for "Graphical User Interface," and is pronounced "gooey." It refers to the graphical interface of a computer...
GUID Stands for "Globally Unique Identifier." A GUID is a 128-bit (16 byte) number used by software programs to uniquely...

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