A graphical user interface (GUI) is a kind of user interface which lets people to interrelate with electronic devices like computers, hand-held devices (Portable Media Players, MP3 Players, Gaming devices), household appliances and office equipment. A GUI gives graphical icons, and visual indicators as opposite to text-based interfaces, typed command labels or text navigation to entirely symbolize the information and actions available to a user. The actions are generally performed through direct manipulation of the graphical elements.
The word GUI is historically restricted to the scope of two-dimensional display screens with display resolutions competent of describing generic information, in the tradition of the computer science research at Palo Alto Research Center (PARC) (previously Xerox PARC and still a subsidiary of Xerox).The word GUI earlier may have been appropriate to other high-resolution types of interfaces that are non-generic, like videogames, or not restricted to flat screens, for example volumetric displays.
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