 the transmitting side to transmit data corresponding to the management information. In this data transmitting method, the management table in which the management information representing the information concerning the presence of the data selected by the input operation unit is registered is provided on the network according to the ID number of the input operation unit. According to a further embodiment of the present invention, there is provided a data transferring program storage medium storing a program that executes processing including the steps of registering, upon selecting information concerning the presence of displayed data by an input operation unit, management information representing the information concerning the presence of the selected data in a management table provided on a network, and transferring, upon obtaining a data transmission request that has been provided by the input operation unit from a device on the network, data corresponding to the information concerning the presence of the data indicated by the registered management information to the device on the network. In the aforementioned data transferring 