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Module 5: Memory Management

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What is the difference between fixed partition and variable partition also explains the need of compaction.

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Fixed vs Variable Partition & Compaction

  • Fixed: equal sized partitions, simple, internal fragmentation, no compaction needed.
  • Variable: partitions sized to process, no internal waste but external fragmentation as holes scattered.
    Compaction shifts occupied partitions to consolidate free space into one large hole, eliminating external fragmentation at cost of copying. Needed for variable partition longevity.

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