| 摘要 |
[Problem] To provide a means for carrying out bidirectional communication using only a memory card device, without depending on an environment with connection devices etc. [Solution] This memory card is provided with an MPU, a wireless communication module, and a memory module. The memory module is provided with: a system usage area which cannot be accessed by the digital device in which the memory card is installed; and a user usage area which can be accessed by the digital device. The system usage area contains: an operating system; a file server program that works in cooperation with the operating system, and manipulates data stored in the user usage area; and a relay communication module that enables the file server program to make a tunneling connection to a virtual network through a relay server on the internet, and that enables the data stored in the user usage area to be manipulated via the file server program from the internet side. |
