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Q

Medium 2 Marks

Computer Studies Computer Memory

How does virtual memory work?

A It increases the physical size of RAM chips

B When RAM is full the OS transfers some data to a hard disk section called the paging file and retrieves it when needed

C It permanently compresses RAM data to create more space

D It adds extra RAM from the network

Explanation

When RAM becomes full the OS transfers some data to a section of the hard disk called the paging file or swap space. When that data is needed again it is moved back into RAM. This process is called paging.

Reference: Computer Studies Textbook , Page 5

Hint

Think about the OS moving data back and forth between RAM and hard disk.

Explanation

Hint

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