资料来源 : Free On-Line Dictionary of Computing

S-Video
     
         A {video} format offering a higher quality signal
        than {composite video}, but a lower quality than {component
        video}.  This mid-level format divides the signal into two
        channels - {luminance} and {chrominance}.
     
        [Used where and for what?]
     
        (1998-06-25)