Information providing system

摘要

To provide detailed information with large amount of data without changing the information to be provided by considering environment of users on information server side providing information and without increasing data amount of the information sent to an information terminal from the information server, and also to facilitate referring, setting and updating of the information of a portable storage medium when the portable storage medium is used as local information storage means. Information is provided to the users by referring to conversion information, which indicates a conversion object address expressing storage status of a given information, which is to be a conversion object, and a conversion candidate address expressing storage status of an information corresponding to said given information, which is to be a conversion candidate, and conversion relationship between said two addresses.