| 摘要 |
PROBLEM TO BE SOLVED: To provide a method that makes it possible to quickly obtain a disk block containing data to be operated, without using many memory resources, when reading or writing files on a FAT type disk. SOLUTION: This file system includes a file operating means for performing the process of opening and/or closing files and for operating a file pointer; a directory entry operation means for analyzing the directory entry information of each file stored on the disk and for editing its arrangement; and a FAT operation means for either obtaining a cluster address where desired data exist on a file to be read and written so as to store the address as FAT cache data, or referring to the FAT cache data for the cluster address where the desired data exist, or directly analyzing and obtaining information on a FAT area, or correctly forming the cluster chain of the file. COPYRIGHT: (C)2005,JPO&NCIPI
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