A server device, which has a content storage section, a content provider, a program table provider, a request processor and the like and can be accessed by a plurality of client devices, is arranged on the Internet. The content provider has a list, in which information about contents with relevance to their transmission times are registered. The content provider reads out the contents from the content storage section based on the list. The request processor controls the content provider to sent the read contents to a client device which has sent a request for transmission of the contents. The program table provider provides the client device, whose request is processed by the request processor, with a program table storing classifications of contents with relevance to their corresponding transmission times. This program table includes information for setting reservation for transmission of contents. The client device, which has received the program table, inputs a request for transmission of contents in accordance with the program table, makes the server device to send the contents to the client device, and makes the server device to send the contents at a time which is reserved and set as transmission time in accordance with the program table.