The electronic device has a power supply input unit which inputs power from an external power supply, an information processing unit which is capable of performing a first function and a second function which consumes more power than the first function does, a display unit which responds to power input to the power supply input unit by displaying whether or not to allow the performance of the first function and the performance of the second function, and an operation unit which receives an operation to be performed in response to the display on the display unit. The information processing unit switches between allowing only the performance of the first function and allowing both of operation in the first function and the performance of the second function according to the operation received by the operation unit.