| 摘要 |
PURPOSE: To increase the operability of retrieval and contents confirmation by making it possible to visually and easily confirm files and folders made hierarchical. CONSTITUTION: On a display screen, an artist list group 101, an album list group 102, and a contents (music in album) list group 103 are displayed. The respective groups 101 to 103 are displayed so as to form a three-dimensional body, e.g. flanks (polygonal cylinder) of a prism on a panel 101a, etc., on which an image showing the contents of a corresponding file or folder is pasted.
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