| 摘要 |
The invention provides a digital camera comprising a disk drive device 1, control circuit 2, flash memory 7, flag processing circuit 8 and memory 9. Power can be supplied to the flag processing circuit 8 and the memory 9 at all times. The control circuit 2 reads image management data from a disk, writes the read data to the flash memory 7, and thereafter gives a flag rewrite command to the flag processing circuit 8. The circuit 8 changes a flag in the memory 9 to "1" in response to the command, and changes the flag to "0" when withdrawal of the disk from the drive device 1 is thereafter detected. The control circuit 2 reads and writes the image management data only when the power source of main body of the camera is turned on, with the flag set to "0", whereby the power consumption of the camera can be reduced.
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