What is virtual memory and its advantages and disadvantages?

Related questions

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2. Do I need a pagefile with 16gb RAM?
3. What is the purpose of MMAP?
4. What is the main disadvantage of virtual memory?
5. Why is virtual memory called virtual?
6. What does it mean to map a file?
7. What do you mean by anonymous mapping?
8. What is MMAP used for?
9. What is MMAP file?
10. What is the benefit of virtual memory?

Tags

1. #overhead
2. #virtual
3. #software
4. #handling
5. #paging
6. #fragmentation
7. #eliminates
8. #complexity
9. #interrupts
10. #reduce
11. #internal
12. #segmented
13. #increased
14. #hardware
15. #advantages
16. #costs
17. #memory
18. #external
19. #using
20. #disadvantages
21. #there