A digital downloading jukebox system including a central server and a plurality of remote jukebox devices each provided with a local server that preferably mirrors the central server and enables selected songs to be immediately downloaded to the jukebox for reproduction. The stay retains an end of the cable in an shape in which the end is wrapped around the coil or bundle when desired, such that a user of the cable can wrap the end of the cable around the coil or bundle and have the end retained in such position without having to knot the end to keep it wrapped around the cable or bundle. When the detected wind speed is higher than the DWSS wind speed determined based on the maximum permissible instantaneous wind speed, the nacelle is rotated from an upwind position to a downwind position and the yaw brake is released. A cladding of a lightwaveguide are narrowed and are painted with a photoabsorbent resin, pigment or adhesive for absorbing horizontally stray beams propagating in the cladding. Each of the agents provides information regarding a respective computing environment to the unification supervisor, and may also manage the respective computing environment as directed by the unification supervisor. The switching device receives a first response link code word, changes the link code word, transmits the changed link code word to the partner device, and receives a second response link code word.