1.2.1 (3) - Virtual and Flash Memory
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5 Terms
1
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What is Virtual Memory?
A way a computer system can compensate for a shortage of RAM.
2
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How does it work (roughly)?
It uses a portion of secondary storage as if it were RAM.
3
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How does the operating system manage virtual memory?
OS creates virtual addresses and stores data as pages
Pages moved from VM to RAM for processing
4
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What happens when data is moved from virtual memory to RAM?
Processor moves page files to RAM, allocating them a physical address
Data in RAM may be moved to VM or Secondary Storage to make space
5
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What is a downside for using SSDs for VM?
Reduced lifespan due to limited R/W cycles.
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