Flash ROMs operate at a speed slower than that of a CPU. The properties of the precipitated silica with adhered or deposited carbon being within the range as utilized in rubber compositions thereby avoiding the blending of silica and carbon components for such use. This makes it possible to provide a technique for analyzing the function of many putative GPCRs whose entities have not been clarified. Also, the music-delivery-available portable terminal apparatus automatically performs the connection to the network by way of the wireless manner when the above-described downloading operation is interrupted so as to restart downloading operation of musical data after the interruption of the downloading operation from the music delivery server.