| 摘要 |
PURPOSE:To carry out the larger number of user tasks at one time by securing a secondary storage when the task executing level is lower than a fixed value and loading a general program into the secondary storage. CONSTITUTION:If the task executing level obtained by a task executing level deciding means 2 has the priority lower than a fixed level, the means 2 calls out a secondary storage securing means 5 without assigning a real memory to a logical space secured previously. The means 5 secures the secondary storages equal to the number of logical spaces secured previously and then calls out a secondary loading means 6 after assignment of the logical spaces. The means 6 loads a general program into the secured secondary storage in a state equal to that secured with push of an on-demand paging ODP mechanism. Thus the larger number of user tasks are carried out at one time.
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