Jack: Operating system acts as an interface between the user and the computer. |
John: The primary function of an OS is to make the most efficient use of the computer hardware. |
Roger: An operating system is a software which performs all the basic tasks like file- management, memory management, handing input and output etc. |
A) Jack is correct
B) John is correct
C) Roger is correct
D) All are correct
E) None of these
Correct Answer: D
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