OPERATING SYSTEMS FOR COMPUTERS
COMPUTER OPERATING SYSTEMS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
a memory management technique
|
|
|
a virus checking utility
|
|
|
a piece of hardware
|
|
|
an series of pixels used to represent an image
|
Detailed explanation-1: -Virtual memory is a memory management technique where secondary memory can be used as if it were a part of the main memory. Virtual memory is a common technique used in a computer’s operating system (OS).
Detailed explanation-2: -Paging, and swapping, segmentation and compaction are modern computers’ four main memory management techniques. Swapping is the best technique for memory management because it provides the most efficient use of system resources.
Detailed explanation-3: -Virtual memory is commonly implemented by demand paging. It can also be implemented in a segmentation system. Demand segmentation can also be used to provide virtual memory.
Detailed explanation-4: -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.