APPLICATION SYSTEM SOFTWARE
WHAT IS COMPUTER SOFTWARE
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
The use of multiple hard disk to create one logical disk.
|
|
|
The use of a software to run multiple OS on the same hardware.
|
|
|
The use of software and hardware to emulate a Network.
|
|
|
The use of hard disk to expand the total memory available to the OS.
|
Detailed explanation-1: -Virtual memory is a common technique used in a computer’s operating system (OS). Virtual memory uses both hardware and software to enable a computer to compensate for physical memory shortages, temporarily transferring data from random access memory (RAM) to disk storage.
Detailed explanation-2: -Virtual memory (also known as a page file) is essentially a block of space on your hard drive or solid state drive allocated by the OS to pretend to be RAM when your physical RAM runs short for actively running programs.
Detailed explanation-3: -The area of the hard drive used for virtual memory is called a swap file.
Detailed explanation-4: -The main visible advantage of this scheme is that programs can be larger than physical memory. Virtual memory serves two purposes. First, it allows us to extend the use of physical memory by using disk. Second, it allows us to have memory protection, because each virtual address is translated to a physical address.
Detailed explanation-5: -Virtual memory is a feature of an operating system that enables a computer to be able to compensate for shortages of physical memory by transferring pages of data from random access memory to disk storage. This process is done temporarily and is designed to work as a combination of RAM and space on the hard disk.