OPERATING SYSTEMS FOR COMPUTERS
COMPUTER OPERATING SYSTEMS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Virtual memory
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memory protection
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Kernel
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Cobol
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Python
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Detailed explanation-1: -In computing, virtual memory, or virtual storage is a memory management technique that provides an “idealized abstraction of the storage resources that are actually available on a given machine” which “creates the illusion to users of a very large (main) memory".
Detailed explanation-2: -So overlay is a technique to run a program that is bigger than the size of the physical memory by keeping only those instructions and data that are needed at any given time.
Detailed explanation-3: -Answers. Technique to implement virtual memory where memory is divided into units of fixed size memory is Paging.
Detailed explanation-4: -Paging is a function of memory management where a computer will store and retrieve data from a device’s secondary storage to the primary storage.
Detailed explanation-5: -Paging. Paging is the memory management technique in which secondary memory is divided into fixed-size blocks called pages, and main memory is divided into fixed-size blocks called frames. The Frame has the same size as that of a Page.