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Glossary of Internet & Computer Terms

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(General Packet Radio Service) an enhancement to the GSM mobile communications system that supports data packets. GPRS enables continuous flows of IP data packets over the system for such applications as Web browsing and file transfer. GPRS differs from GSM's short messaging service (GSM-SMS) which is limited to messages of 160 bytes in length.

grammar check
a feature included in some word processing applications that alerts a user when improper grammar or spelling has been used and offers options for correcting the error. The grammar check feature can be disabled allowing the user to incorporate a particular style to the writing including grammar not considered proper.

graphical user interface
(GUI) pronounced gooey. a method of interacting with a computer program by making use of graphics, icons, pop-up menus, windows, a mouse and mouse pointer. To point to an object with a mouse cursor, click on the object, and experience a result such as having a menu appear or to arrive at a Web page is an example of graphical user interface. The basic technology was developed by Xerox in the 1970s but the company could find few practical applications for it. Macintosh adapted GUI as the foundation of the Apple Macintosh in the 1980s, but it wasn’t until the early 1990s with the emergence of Windows 3.0 that the technology really took off.

computer screen images represented as pictures or photographs. Graphics are formatted differently than text and require software that is able to read and display them. The quality of a graphical image viewed on a computer or produced by a printer will depend on the resolution of the screen or printer.

graphics card
a plug-in video circuit board containing memory that allows a computer to display graphic images as well as text.

the use of various shades of gray along with pure black and white to produce an image.

green PC
a computer designed to minimize the use of electricity it uses. It usually shuts down after a pre-determined amount of idle time. see Energy Star.

(Global System for Mobile communications) a digital cellular phone technology based on TDMA that is the predominant system in Europe, but is also used around the world. Developed in the 1980s, GSM was first deployed in seven European countries in 1992. Operating in the 900MHz and 1.8GHz bands in Europe and the 1.9GHz PCS band in the U.S., GSM defines the entire cellular system, not just the air interface (TDMA, CDMA, etc.).

see Graphical User Interface.

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