Source : WordNet®

digital camera
     n : a camera that encodes an image digitally and store it for
         later reproduction

Source : Free On-Line Dictionary of Computing

digital camera
     
         A camera that captures and stores still
        images as {digital} data instead of on photographic film.
     
        The first digital cameras became available in the early
        1990s[?].
     
        [Which and when was the first?]
     
        (2000-08-10)