A GUI (pronounced 'goo-ee'), or (G)raphical (U)ser (I)nterface, is the general term describing a method in which input and output elements in a computer system are abstraced into objects on the computer's video display device. The GUI was popularized by Apple Computer's Macintosh and has seen it's most versatile implementation on the World Wide Web.


In the the dark mists of time, that is the pre Windows 3.x days when DOS ruled supreme, so-called PC (and usually self-proclaimed) power users would denigrate Mac users choice of machine by calling GUIs a W.I.M.P interface.

As in Windows, Icons, and Mouse pointer.

Real men, they would openly boast about preferring the DOS prompt.

Of course most of the bozos back then had never seen, let alone used X on a Unix workstation. Or even a touched Macintosh for that matter!

Graphical User Interface: a type of graphical presentation of data on a computer display in which commands are entered and functions performed through an interface normally including windows, icons, menus, and pointers. The concept originated in the 1970s at Xerox's PARC laboratory.

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