Graphical User Interface
A person needs to interact with a machine in order to make it do something useful. The way it is done is through an 'interface'.
There are a number of interface types. One of which is the Graphical User Interface or GUI for short.
A GUI is a graphics-based user interface that incorporates windows (W), icons (I), menus (M)and pointers (P). You often hear a gui referred to as a WIMP interface.
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