Computer Science Illuminated
Computer Science Illuminated
6th Edition
ISBN: 9781284055917
Author: Nell Dale, John Lewis
Publisher: Jones & Bartlett Learning
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Chapter 10, Problem 61E
Program Plan Intro

Virtual memory:

  • The process which is larger in size than the available memory can be loaded and executed by loading the process in parts or pages; this concept is referred as virtual memory.
  • Virtual memory is a very important concept of memory management technique.

Demand paging:

This is the concept of loading a page of program codes from disk in to the main memory when it referred for execution is known as demand paging.

  • If the data already exists in the memory, then it will not be copied.
  • Mostly in virtual memory systems, this type of swapping operation is performed.

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