An electronic apparatus is designed so that a change in state of the operation key leads to a predetermined processing operation. In the electronic apparatus, a first detector detects operation keys being touched among a plurality of operation keys. A second detector detects an operation key being subjected to an operation of changing the state thereof among the operation keys. A device of notification signal generation generates a notification signal for providing the user with an explanation about processing corresponding to the operation key currently touched based on a detection result of the first detector. A first control device brings a hardware module and/or a software module, which corresponds to the operation key subjected to the change of the state thereof to an operation of changing a state is performed, into an execution state. The operation keys may be formed on a remote control transmitter.