An information processing system, such as a camera system, includes a radio communication system and an information appliance (such as a camera) communicable with the radio communication system within a predetermined distance. The information appliance includes an image pickup for obtaining image data by photographing a subject, a storing part for storing information peculiar to a user of the information appliance, a radio communication part for transmitting a predetermined radio signal and for reading information from the radio communication system, and an authorization part for authorizing the user by collating information from the radio communication system read at the radio communication part with stored information peculiar to the user. The radio communication system includes storage for storing predetermined information and a transmission part for receiving a radio signal generated at the information appliance and for transmitting the stored predetermined signal as a radio signal.