| 摘要 |
PURPOSE:To shorten the retrieving time for an available data area by providing the identification information for identification of an aggregate and the sequence of data independently of each other against a data area where data are stored. CONSTITUTION:The identification information 2 and 8 which identify the aggregates and the sequence of data set independently of each other against a data area 10 where data are stored. When data are processed to the area 10, the aggregates are identified by the identification information 2 for aggregates provided independently of the area 10. Then the identification information 8 for sequence of data identifies the position of the data in the aggregate and processes data. Thus it is possible to decrease the number of bits of a data pointer for a data chain and to shorten the retrieving time for an available data area. Furthermore the data processing time is shortened.
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