Abstract: A file transfer system includes a file management server, a file transmitting terminal, and a file receiving terminal connected each other via a network. The file transmitting terminal transmits to the file management server a file and an authorization condition for accessing the file. The file management server stores the file and the authorization condition relating each other. The file receiving terminal transmits to the file management server a request for transferring the file. The file management server, in response to the request, determines whether the authorization condition is satisfied, and if the authorization condition is satisfied, transfers the file to the file receiving terminal. Accordingly, a user can safely receive the file via the network even if the user does not have an information apparatus having memory capacity large enough to receive the file.

Abstract: A multi-functional apparatus functions as a Web server, and portable telephones, personal computers function as clients. A manual that guides the setting operation (i.e., simulates the progress of the proceeding of the setting operation, by adding voice to a motion picture) is provided as a Web page. A user inputs instructions on a screen displayed on a display of the portable telephone. The instructions input are transmitted to the multi-functions apparatus. The multi-functional apparatus changes own settings according to the instructions received and notifies the portable telephone about the new settings.