Linux - What is Demand Paging? Explain the conditions for a machine to support Demand Paging.

What is Demand Paging? Explain the conditions for a machine to support Demand Paging.

The process of mapping a large address space into a relatively small amount of physical memory is known as demand paging. The accomplishment of demand paging is done by implementing ‘backing store’.

The conditions are:

- Pages based memory architecture.

- ‘restartable’ instructions support by the machine
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