| 摘要 |
PROBLEM TO BE SOLVED: To improve a security function by preventing a discarded information processor from being fraudulently used. SOLUTION: A first control part 11 transmits an erasure command to a software sequencer 14 when an expiration date for use set in a first storage part 12 elapses, and the software sequencer 14 accesses a second storage part 16 to read an erase program 16a in the case of receiving the erase command, writes data FFH in all addresses of the first storage part 12 based on the read erase program 16a to erase information, and outputs a completion signal to operate a buzzer 15 when erasure by this writing is completed. |
