To utilize commodity information on a commodity purchased in a store by a consumer also for inputting it to household electrical appliances.
This consumer terminal 20 includes: a communication part 201 receiving the commodity information of the concerned commodity from store terminals 101 to 10n through the Internet when a consumer purchases the commodity in the store; a log of household expenses creating part 204 for creating a log of household expenses according to the commodity information from the store terminals 101 to 10n; a household electrical appliances information creating part 205 for creating the household electrical appliances information displayed on Internet household electrical appliances (a refrigerator 21, a microwave oven 22) according to the commodity information from the store terminals 101 to 10n; and a control part 207 for transferring the household electrical appliances information created at a household electrical appliances information creating part 205 to the Internet household electrical appliances through the Internet by the communicating part 201.
Nobuyuki Kaneda
Katsuhiro Ito
Ishibashi Masayuki