Virtual Memory and RAM

Created by: stephenistefanous
Created on: 25-01-16 13:08

[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]

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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

Front

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

Card 4

Front

[RAM]

Back

Card 5

Front

What is it?

Back

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Virtual Memory and RAM