COMPUTER ARCHITECTURE
SECONDARY STORAGE DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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TRUE
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FALSE
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Either A or B
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None of the above
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Detailed explanation-1: -If the OS has to swap data between virtual memory and RAM too often, the computer will begin to slow down–this is called thrashing. Virtual memory was developed at a time when physical memory–also referenced as RAM–was expensive.
Detailed explanation-2: -The main disadvantage of virtual memory is that it is much slower than RAM, so it can slow down the performance of the computer. Additionally, the size of the swap file can be limited, so if the computer needs to use more memory than the swap file can provide, it will not be able to use the additional memory.
Detailed explanation-3: -The use of virtual memory allows the use of larger programs and enables those programs to run faster. In modern operating systems, data can be constantly exchanged between the hard disk and RAM memory via virtual memory. A process termed swapping is used to exchange data via virtual memory.