The correct answer is D. Virtual memory is not the physical space on the hard drive. It is a technique that uses secondary storage to simulate a larger memory space for a computer program than the physical memory actually installed in the computer.
When a program is run, it is loaded into RAM. However, if there is not enough RAM to load the entire program, the operating system will use virtual memory to store parts of the program that are not currently being used on the hard drive. This allows the program to continue running even though it does not have enough physical memory.
The swap file or page file is a file on the hard drive that is used to store data that is not currently being used by a program. When a program needs to access data that is stored in the swap file, the operating system will copy the data from the swap file to RAM.
The amount of hard disk drive space that is allocated to virtual memory can be manually changed in the operating system’s settings. The default setting is usually 1.5 times the amount of physical memory installed in the computer. However, this setting can be changed to a higher or lower value depending on the needs of the computer.
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