The Interactive Glossary: Defining the Net
GUI

A GUI, short for graphical user interface, allows users to navigate and interact with information on their computer screen by using a mouse to point, click, and drag icons and other data around on the screen, instead of typing in words and phrases. The Windows and Macintosh operating systems are examples of GUIs. The World Wide Web is an example of a GUI designed to enhance navigation of the Internet, once done exclusively via terminal-based (typed command line) functions.