What is virtual memory and how does virtual storage be implemented in a page-type system?

Source: Internet
Author: User

The dynamic scheduling of the information between the main memory and the secondary storage is done by the operating system and the hardware, so the computer seems to provide the user with a much larger storage capacity than the memory, which is called virtual memory.

(The realization of virtual storage technology needs to have the following material basis, considerable capacity of main memory, a certain capacity of the secondary storage, address transformation mechanism)

Virtual storage is implemented in a page-based system with a pre-tuning approach. (That is, only a portion of the job's page is loaded into memory and the pages that are needed during the run are not in memory and are then paged in.) )

What is virtual memory and how does virtual storage be implemented in a page-type system?

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