| 摘要 |
<p>The present invention provides an information storage device includes a first storage unit stores an arbitrary information file transmitted via a wide area information network, a second storage unit stores an information file in a predetermined form, which is derived from the first storage unit, an information file determination unit determines whether or not the information file in the first storage unit is the information file in the predetermined form, a file conversion unit converts an information file into the predetermined form, and a storage management unit manages the information file, and stores in the second storage unit. In the information storage device, if a copy of the information file in the first storage unit is not in the predetermined form when the copy is stored in the second storage unit, the copy converted into the information file in the predetermined form, and stored in the second storage unit.</p> |
