| 摘要 |
PURPOSE:To speed up access processing time at the time of accessing massive data. CONSTITUTION:At the time of obtaining subscriber information on a terminal b1 for calling the subscriber terminal b1 among plural subscriber terminals joining by the same class from a subscriber terminal a1, a mass storage data read task tsk-3 indexes index data-3 on a memory. Thus, the pointer of common data and subscriber peculiar data are obtained for every class of the terminals on the memory. At the time of obtaining subscriber information on a terminal d1 for calling the subscriber terminal d1 which does not join by a plural number in the same terminal class from the subscriber terminal a1, the mass storage data read task tsk-3 indexes index data-3 on the memory. Thus, the pointer of common data and subscriber peculiar data on the memory are obtained for every terminal class on the disk.
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