Minimize
Minimize is an action available in all GUI operating systems that allows a user to hide a window but keep the application running and accessible. In the below picture, is an example of a Microsoft Windows window with the minimize in the top-right corner of the window.

In all recent versions of Microsoft Windows, the minimize button is represented by an underscore in the top-right corner of the window. When minimized, the program will remain on the taskbar but not visible. In the early versions of Windows 3.x and other operating systems and software programs, the minimize may be represented by a small down arrow. When minimized, the program can be accessed by the icon behind the file manager.
To
minimize only the current window press Alt + Space bar. After
pressing this key the properties for this window will open and then press
N to minimize the window.
Microsoft
Windows users with a Windows keyboard can press the
Windows key + M
shortcut key to minimize all open windows.
To undo the minimize all open windows press Shift + Windows Key + M.
In Apple MacOS X, the minimize action can be done by pressing the green button in the right-corner of the window. Earlier Mac operating system windows could be minimized by pressing the button in the right corner of a window.
Also see: Close, Maximize, Operating System definitions, Restore, Window
