To make a system suitable to a specific kitchen environment being used frequently by delivering control signals to a communication channel and kitchen appliances and providing an interface means for transmitting a data to the communication channel.

A forward user interface region 16 having a touch screen for inputting and displaying required information is formed in the door of a microwave oven. The user interface region 16 delivers a control signal to a kitchen appliance and operates it as a microwave oven 10 and controls transfer of an arbitrary required data through internet connection. A control signal is also delivered to a communication channel 28 so that an internet can be accessed for the purpose of required electronic bank transaction and electronic shopping service.