| 摘要 |
PURPOSE:To attain a data access regardless of existence in a main memory or an auxiliary memory by using a file control information table which is capa ble of collective controlling of data. CONSTITUTION:When the reference and replacement are given to a data set A by an application program, the reference is given to a file control information table 4 by a data collective processing means 3. Thus it is known that the data set A exists in an auxiliary memory means 2 and an access function of an auxiliary memory means of an operation system OS is called out. While it is known in the same way that a data set B eixsts in a main memory means 1. Thus it is possible to give an acess to a desired data set by a single procedure regardless of existence of the data set in a main memory or an auxiliary memory.
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