Virtual Memory and RAM

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[Virtual Memory]
[Virtual Memory]
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What is it?
Virtual memory is a feature of an operating system that allows a computer to compensate for shortages of physical memory by temporarily transferring pages of data from RAM to disk storage.
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How does it work?
Occurs in the background; the area of the hard disk that stores the RAM image is called a page file e.g. .swp file It holds pages of RAM on the hard disk, and the operating system moves data back and forth between the page file and RAM.
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[RAM]
[RAM]
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What is it?
RAM is Random Access Memory. It is volatile which means when the computer is switched off, the data is lost.
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What does it do?
RAM is used to store currently running programs and data.
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How virtual memory is used for RAM.
When RAM runs low, virtual memory moves data from RAM to a space called a paging file; moving data to and from the paging file frees up RAM so your computer can complete its work. It all happens in the background; the area of the hard disk that store
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Card 2

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What is it?

Back

Virtual memory is a feature of an operating system that allows a computer to compensate for shortages of physical memory by temporarily transferring pages of data from RAM to disk storage.

Card 3

Front

How does it work?

Back

Preview of the front of card 3

Card 4

Front

[RAM]

Back

Preview of the front of card 4

Card 5

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What is it?

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Preview of the front of card 5
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