An electroluminescent display device includes a transparent substrate and an electroluminescent element disposed over the substrate. The total personal password is obtained by producing the personal identification information, by producing the result of the game or examination as a parameter, and by encrypting both the personal identification information and the result. The data control unit transmits to the Banyan unit a control signal representing a channel to which data belongs, and controls the operations of the Banyan switches. The gas is loaded into a storage element located on a floating vessel, while the liquids are loaded into the storage element forming a mixture.