COMPUTER SCIENCE AND ENGINEERING
OPERATING SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Provide a user interface
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Communicate with hardware
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Allow the computer to multi-task
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Improves CPU performance
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Detailed explanation-1: -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.
Detailed explanation-2: -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-3: -Answer. Answer: Optimising the CPU is done through the power option section of the computer panal in the windows operating system.
Detailed explanation-4: -Detailed Solution. The correct answer is Execution of arithmetic operations. Execution of arithmetic operations is not a function of the operating system.
Detailed explanation-5: -Processor management The operating system manages the CPU. When software is opened, the OS finds it and loads it into memory (RAM). The CPU can then be instructed to execute the program. The operating system will manage the sharing of processor time.