The windows refer to the operating system, developed by Microsoft, expands on the DOS operating system; users can activate programs from Windows using icons (or symbols). An icon is a picture on the screen that represents an action or application that the computer can implement. Windows is a graphical user interface (GUI), that uses the point-and-click method (i.e., the use of a mouse to point at an icon or menu item and click on it) to execute different commands, such as the file commands open, close, delete, and move.
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