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In computing, a keyboard shortcut (also hotkey/hot key or key binding)[1] is a software-based assignment of an action to one or more keys on a computer keyboard. Most operating systems and applications come with a default set of keyboard shortcuts, some of which may be modified by the user in the settings.
Keyboard configuration software allows users to create and assign macros to key combinations which can perform more complex sequences of actions. Some older keyboards had a physical macro key specifically for this purpose.