Virtual memory is a memory management technique where –
2023
Virtual memory is a memory management technique where –
- A.
Main memory can be used as secondary memory
- B.
Only secondary memory is used
- C.
Secondary memory can be used as main memory
- D.
Data transfer is restricted between main memory and secondary memory
- E.
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Correct answer: C
Virtual Memory is a sophisticated memory management technique that creates an illusion for the user or a program that the computer has a very large main memory (RAM), even if the physical RAM is limited.
How it works: It uses a portion of the secondary memory (like a Hard Disk or SSD) to act as an extension of the main memory (RAM).
The Process: When the RAM is full, the Operating System moves inactive "pages" of data from the RAM to a space on the hard drive (often called a swap file or page file). When those pages are needed again, they are swapped back into the RAM.
Benefit: This allows the system to run larger applications or multiple programs simultaneously that would otherwise exceed the physical capacity of the RAM.