What is virtual memory in an operating system?*5 pointsA) Memory located on a remote serverB) Part of the hard drive used as an extension of RAMC) Memory used by graphics cardsD) A type of physical RAM
Question
What is virtual memory in an operating system?*5 pointsA) Memory located on a remote serverB) Part of the hard drive used as an extension of RAMC) Memory used by graphics cardsD) A type of physical RAM
Solution
Virtual memory in an operating system is B) Part of the hard drive used as an extension of RAM.
Here's a step-by-step explanation:
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Virtual memory is a memory management technique developed for multitasking kernels.
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This technique virtualizes a computer architecture's various forms of computer data storage (such as Random-access memory or RAM and disk storage), allowing a program to be designed as though there is only one kind of memory, "virtual" memory, which behaves like directly addressable read/write memory (RAM).
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It uses hardware and software to allow a computer to compensate for physical memory shortages, by temporarily transferring data from RAM to disk storage.
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Applications use virtual memory for "virtual" features such as allowing large programs to run on systems with less physical memory, by automatically handling memory reallocation between RAM and disk when needed.
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So, it's like an extension of the computer's RAM through a portion of the hard drive, thus it increases the available memory of the system.
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