COMPUTER SCIENCE AND ENGINEERING
SYSTEM SOFTWARE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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moving data from the hard drive to a removable drive
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moving data from memory to the swap file on the hard drive
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moving data between registers in memory
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none of the above
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Detailed explanation-1: -A swap file is a system file that creates temporary storage space on a solid-state drive or hard disk when the system runs low on memory. The file swaps a section of RAM storage from an idle program and frees up memory for other programs.
Detailed explanation-2: -In computer operating systems, memory paging (or swapping on some Unix-like systems) is a memory management scheme by which a computer stores and retrieves data from secondary storage for use in main memory.
Detailed explanation-3: -Explanation: A swap file is a type of file that stores the data retrieved from Read-Only-Memory (RAM) or main memory. It is also a virtual memory because it is not stored in physical RAM.
Detailed explanation-4: -If the data or instructions in the swap file are needed later, the OS swaps them back into active RAM and replaces them in the hard drive’s swap file with less active data or instructions. This process of swapping is called paging.
Detailed explanation-5: -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.