Cambridge Professional English Infotech English for computer users Fourth Editiorf

Global Positioning System (GPS)
/.glaubal pa'zijanii] .sistam/ n A navigation system formed by various satellites orbiting the earth and their corresponding receivers on the earth. It allows GPS receivers to determine their location, speed and direction.
Google /'guigal/1 n A popular search engine on the Web. 2 vTo search the Web for something.
grammar checker /'graema ,tjeka/ n A
software utility that analyses the grammar of a written text.
graphical user interface (GUI) /.graefikal
'ju:za ,intafeis/ n A user-friendly interface based on graphics. A GUI uses a WIMP environment: windows, icons, menus and pointer. Typical examples are the Mac OS and Microsoft Windows.
graphics tablet /'grasfiks ,taeblat/ n An input device which allows the user to enter drawings and sketches into a computer
H
hacker /'haska/ n Someone who invades a network's privacy. Originally, all skilled programmers were known as hackers, but in the 1990s, the term became synonymous with cracker, a person who breaks security on computers.Today, the general public uses hacker for both. In the computer industry, hackers are known as white hats and crackers as black hats or darkside hackers.