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content/notes/22-virtual-memory.md
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@ -29,7 +29,13 @@ extends main memory to secondary storage, and allows dynamic loading of processe
- mem manager in OS kernel controls loading pages of the process into main mem from secondary storage
# Demand paging
dont load a page into mem until it is referenced by CPU
implementing
- in paging scheme there are extra bits in the table to provide more information
- valid/invlid bit
- protection bits
- in demand paging the mem manager
# page replacement algorithms
# frame allocation