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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 .
The standard full-size (100%) computer alphanumeric keyboard typically uses 101 to 105 keys; keyboards integrated in laptop computers are typically less comprehensive. Virtual keyboards , which are mostly accessed via a touchscreen interface, have no physical switches and provide artificial audio and haptic feedback instead.
[1] [4] [5] Unwieldy and difficult to use, these keyboards became obsolete after the introduction of Cangjie input method, the first method to use only the standard QWERTY keyboard and make Chinese touch typing possible. [5] A typical keyboard layout for the Cangjie method, which is based on the United States keyboard layout.
A musical keyboard is the set of adjacent depressible levers or keys on a musical instrument.