METHOD AND DEVICE FOR FILE MANAGEMENT

摘要

PROBLEM TO BE SOLVED: To provide the method and device for file management which miniatur ize a main body and can manage a file of halfway recorded/deleted data even when a power source battery is removed during the recording/deleting operation to stop this operation. SOLUTION: When a power source is turned on, a CPU 32 copies 'a block map' of a flash memory 9 to a RAM 34 to read out the block number of the leading block of a file from 'a directory' of the flash memory 9. The CPU 32 sets all the flags corresponding to individual blocks of this file to 'busy' and writes set flags in the flash memory 9.