资料来源 : Free On-Line Dictionary of Computing

Blue Box
     
         The complete implementation of the {Mac OS}
        run-time environment on the more modern {Rhapsody} operating
        system.  {Blue Box} is not an {emulation} layer; at any given
        time it will be based on the same source code and ROM image as
        the current version of Mac OS and will thus incorporate future
        Mac OS improvements.
     
        (1997-10-15)