Check out example codes for "Use of memory management unit". It will help you in understanding the concepts better.
Code Example 1
Memory management unit keeps track of each and every memory location, regardless of either it is allocated to some process or it is free. It checks how much memory is to be allocated to processes. It decides which process will get memory at what time. It tracks whenever some memory gets freed or unallocated and correspondingly it updates the status.
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