Question

1). Discuss the limitations of memory management schemes in early systems. What were the most problematic aspects of these schemes? Why were they sufficient for the first three generations of computers?

2). Discuss the compaction process. How often should it occur and what are its advantages and disadvantages?

Answer 1

ANSWER 1:

Here are the limitations of memory management schemes:

• Single-User Contiguous Scheme

• Fixed Partitions

• Dynamic Partitions

• Deallocation

• Relocatable Dynamic Partitions

They were the most problematic parts of these plans in light of the fact that each program stacked completely into memory and assigned as a lot of contiguous memory space varying. On the off chance that the program was excessively enormous, at that point it couldn't be executed.

They were adequate for the initial three ages of PCs in light of the fact that an insignificant measure of work done by Memory Manager.

ANSWER 2:

The more compaction there is, the more overhead processing is happening and on the off chance that it holds a lot of need, you could wind up with the processor investing an excessive amount of energy compacting and less time processing the jobs.

The advantages of compaction of memory are that there will be more memory accessible as the squares are moved together to utilize the memory.

The disadvantage of more compaction is that compaction is an overhead process that happens while every single other movement looking out for its fruition.

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