A windowing system (or window system) is a
graphical user interface (GUI) which implements
windows as one of its primary
metaphors. It is normally one part of a larger
desktop environment.From a
programmer's point of view, a windowing system implements graphical primitives such as rendering
fonts or drawing a line on the screen, effectively providing an abstraction of the graphics hardware.A windowing system enables the computer user to work with several programs at the same time. Each program runs in its own window, which is an area of the screen, typically a rectangle. Most windowing systems allow windows to overlap, and provide means for the user to perform standard operations such as moving/resizing a window, sending a window to the foreground/background and minimizing/maximizing a window.
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