Electronic equipment, data sharing system, and data sharing method

An electronic equipment having a data storage area and connected to a network, comprising:

• a storage unit that is provided with a data storage area in which a user specific inherent storage area is secured for each of a plurality of users, wherein the plurality of users comprises a first user;
• an internal storage processing part that stores data, corresponding to a request to store the data from the first user, to the user specific inherent storage area corresponding to the first user in the electronic equipment when there is an empty capacity in the user specific inherent storage area corresponding to the first user;
• a capacity inquiring part that inquires about an empty capacity of a storage area of an other electronic equipment connected to the electronic equipment via the network based on the storage request;
• an external storage processing part that transmits the data in response to the storage request to the other electronic equipment for storage of the transmitted data in the other electronic equipment when there is an empty capacity in a user specific inherent storage area corresponding to the first user in the other electronic equipment and there is no empty capacity in the user specific inherent storage area corresponding to the first user in the electronic equipment;
• and
• a data management part that manages data stored in the user specific inherent storage area corresponding to the first user in the other electronic equipment as data stored in the user specific inherent storage area corresponding to the first user in the electronic equipment accessible from the first user,
• wherein the user specific inherent storage area of the other electronic equipment and the user specific inherent storage area of the electronic equipment that both correspond to the first user are managed as the same user specific inherent storage area.