Paged memory management Memory management (operating systems)

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paged allocation divides computer s primary memory fixed-size units called page frames, , program s virtual address space pages of same size. hardware memory management unit maps pages frames. physical memory can allocated on page basis while address space appears contiguous.


usually, paged memory management, each job runs in own address space. however, there single address space operating systems run processes within single address space, such ibm i, runs processes within large address space, , ibm os/vs2 svs, ran jobs in single 16mib virtual address space.


paged memory can demand-paged when system can move pages required between primary , secondary memory.







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