MCQ IN COMPUTER SCIENCE & ENGINEERING

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COMPUTER SCIENCE AND ENGINEERING

OPERATING SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Managing computer memory by the operating system does not include this process:
A
connecting printers and other peripheral devices
B
releasing memory not used for a while
C
loading programs into memory as a user opens them
D
protecting one program’s memory area from being used by the other program
Explanation: 

Detailed explanation-1: -The operating system constantly swaps out the unused parts for the parts being used. This gives each process its own space and keeps them from corrupting one another. This technique is called virtual memory management.

Detailed explanation-2: -Detailed Solution The correct answer is Execution of arithmetic operations. Execution of arithmetic operations is not a function of the operating system.

Detailed explanation-3: -Virus protection is the function of Firewall and Antivirus. Hence, it is not the function of an operating system. So, the correct answer is option (b).

Detailed explanation-4: -Detailed Solution. The correct answer is Database management. An operating system is a program on which application programs are executed and acts as a communication bridge (interface) between the user and the computer hardware.

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