An electronic apparatus, method, and computer-readable medium shorten the response time of an electronic apparatus such as an electronic camera capable of communicating with an information processing apparatus such as a computer, and improve the usability of the information processing apparatus when the information processing apparatus requests data stored in the storage medium of the electronic apparatus. The electronic apparatus, which has a main storage device and an auxiliary storage device, is connected to an external apparatus, and can transmit/receive data to/from the external apparatus. Data to be requested by the external apparatus is loaded in advance from the auxiliary storage device to the main storage device before the external apparatus requests the data after connection to the external apparatus is established.