2. (a) Compare and contrast internal and external memory partitioning. [10 marks]



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2.

(a) Compare and contrast internal and external memory partitioning.



[10 marks]

Whenever a process is loaded or removed from the physical memory block, it creates a small hole in memory space which is called fragment. Due to fragmentation, the system fails in allocating the contiguous memory space to a process even though it have the requested amount of memory but, in a non-contiguous manner. The fragmentation is further classified into two categories Internal and External Fragmentation.


Both the internal and external classification affects data accessing speed of the system. They have a basic difference between them i.e. Internal fragmentation occurs when fixed sized memory blocks are allocated to the process without concerning about the size of the process, and External fragmentation occurs when the processes are allocated memory dynamically.

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