Modifier Key

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A Modifier Key is a key or a combination of keys that triggers an Operating System or Software Application action or task.



References

2019a

  • (Wikipedia, 2019) ⇒ https://en.wikipedia.org/wiki/Modifier_key Retrieved:2019-1-20.
    • In computing, a modifier key is a special key (or combination) on a computer keyboard that temporarily modifies the normal action of another key when pressed together. By themselves, modifier keys usually do nothing; that is, pressing any of the Shift, Alt, or Ctrl or keys alone does not (generally) trigger any action from the computer.

      For example, in most keyboard layouts the Shift key combination Shift+Awill produce a capital letter "A" instead of the default lower-case letter "a" (unless in Caps lock or Shift lock mode). A combination of Alt+F4in Microsoft Windows will close the active window; in this instance, Alt is the modifier key. In contrast, pressing just Alt or F4 will probably do nothing unless assigned a specific function in a particular program (for example, activating input aids or the toolbar of the active window in Windows).

       User interface expert Jef Raskin coined the term “quasimode” to describe the state a computer enters into when a modifier key is pressed.

2019b

2019c

  • (CH, 2019) ⇒ https://www.computerhope.com/jargon/k/key-combination.htm Retrieved:2019-1-20.
    • QUOTE: A key combination is the use of two or more keys on a keyboard to generate a specific result. These keys are pressed either at the same time, or one after the other while holding down each key until the last key is pressed.

      Many key combinations are shortcuts to performing various actions in the operating system or a program that is running. These shortcuts may help save time when working with a document. When written, key combinations are often noted with a plus sign (+) between the names of the combined keys.

      Some common key combinations include:

      • Ctrl+S - Save currently open file.
      • Ctrl+C - Copy highlighted text or an image.
      • Ctrl+V - Paste text or an image from clipboard.
      • Ctrl+Alt+Del - Open up the Task Manager or option to change password for the user's account.
      • Ctrl+B - Change highlighted text to be bold.
      • Ctrl+I - Change highlighted text to be in italics.
      • Ctrl+U - Change highlighted text to be underlined.
      • Ctrl+A - Select all text and images (everything) in the current, active application.
      • Alt+F4 - Close the currently open and active application window.
      • Ctrl+F4 - Close window in open application but leave the application open.