• On a computer screen that has more than one window open, the window which is currently being interacted with. All others are background (3) windows.
  • On a screen or display, the area that is being specifically interacted with or observed. Also called display foreground.
  • On a screen or display, the area where characters and/or graphics are displayed.
  • In computers, processing and other functions that interrupt those of less priority when needed.

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