such as a pointing device a mouse or a joystick 7 and a keyboard 6 for entering data and a display device 12 for providing a search request sentence and search result data for a user furthermore a printer can be connected to the system 100 via a parallel port 16 or a modem can be connected via a serial port 15 for communicating with another computer the system 100 can be connected to a network via the serial port 15 and a modem or via a communication adaptor 18 an ethernet or a token ring card preferably a search request sentence is received via the communication adaptor 18 and the results of the search are transmitted via the communication adaptor 18 a remote transceiver is connected to the serial port 15 or to the parallel port 16 for exchanging data with the system 100 using infrared rays or wires a loudspeaker 23 is used to receive via an amplifier 22 an audio signal obtained by a dia conversion digital analog conversion performed by an audio controller 21 and to output the signal as sound the audio controller 21 performs the a d analog digital conversion of audio information received via a microphone 24 in order to introduce external audio data into the system 100 as is described above it would be easily understood that the system of the present invention can be provided by a normal personal computer pc a workstation a notebook pc a palmtop pc a network computer a television set or another electric home appliance that incorporates a computer a game machine having a communication function a communication terminal having a communication function such as a telephone a facsimile.