| 摘要 |
<p>PROBLEM TO BE SOLVED: To guarantee the validity of journal records written in a journal file even after a machine time is changed to the past state. SOLUTION: In this system, a machine time being a reference is compared with the latest time data in a journal file 1 by a comparing means 15b. Also, when the machine time is in a state prior to the latest time data in the journal file 1 as the result of the comparison by the comparing means 15b, correction time data for correcting the machine time into a state posterior to the latest time data in the journal file 1 are generated by a correction time data generating means 15c. Then, time data to be written in the journal file 1 are obtained from the machine time and the correction time data by a time data correcting means 15d.</p> |
