FUNDAMENTALS OF COMPUTER

OPERATING SYSTEMS FOR COMPUTERS

COMPUTER OPERATING SYSTEMS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
If there is not enough RAM. Virtual memory is created by the Operating System. Virtual memory is
A
memory that is not real
B
part of the hard drive allocated as RAM
C
a type of sheep
D
a type of goat
Explanation: 

Detailed explanation-1: -With virtual memory, the computer can use hard disk space as random access memory (RAM). The computer uses virtual memory to augment the ordinary RAM that is installed on the computer. If you reduce the size of the paging file, the Office program may not start correctly or may not start at all.

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: -Virtual memory is important for improving system performance, multitasking and using large programs. However, users should not overly rely on virtual memory, since it is considerably slower than RAM.

Detailed explanation-4: -If virtual memory doesn’t exist, we can’t load more than one program in the main memory. This means that without virtual memory, we can only run one program at a time. This is because each program might have to use different functions that may point to the same addresses in RAM.

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