| 摘要 |
PROBLEM TO BE SOLVED: To realize high level file management by specifying the location of a file with a small processing load. SOLUTION: When a file operation request is issued, a file operation is performed by a file operating means 3. When a file is arranged under an arbitrary directory according to the file operation, the identification information of the arbitrary directory is specified as master directory information corresponding to the file by a master directory information setting means 4. Afterwards, when a master directory acquisition request is issued by designating the file, the identification information of the arbitrary directory is outputted by referring to the master directory of the designated file by a master directory information providing means 5.
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