What are the advantages of the operating system?
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Advantages :
Allocating memory is easy and cheap
Any free page is ok, OS can take first one out of list it keeps
Eliminates external fragmentation
Data (page frames) can be scattered all over PM
Pages are mapped appropriately anyway
Allows demand paging and prepaging
More efficient swapping
No need for considerations about fragmentation
Just swap out page least likely to be used
Allocating memory is easy and cheap
Any free page is ok, OS can take first one out of list it keeps
Eliminates external fragmentation
Data (page frames) can be scattered all over PM
Pages are mapped appropriately anyway
Allows demand paging and prepaging
More efficient swapping
No need for considerations about fragmentation
Just swap out page least likely to be used
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