It is made possible to update installed software appropriately. A CE device stores an update management table in which are set, with respect to software bundled with the CE device, the names, IDs, version numbers, update cycles, and contact information (URLs of update data supplying servers) for making inquiries on the presence of updates. For example, assuming that everyday, when it is recognized that the time is past 10:00, there is a need to check for the presence of updates for software A, the CE device accesses a URL corresponding to software A, and makes an inquiry on the presence of updates.