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Subject :NCO    Class : Class 5
which is a operating system

Ans 1:

Class : Class 6
Operating systems are of different types like windows 10,windows 8,windows 99,windows 7.It is also a program to control applications such as ms-paint,and most important about whether the computer needs to restart or not.It checks the computer system.

Ans 2:

Class : Class 7
An operating system is like a bridge between the user and the computer. It translates our command and thus,helps the computer to give us the answer...

Ans 3:

Class : Class 6
An Operating System is a set of programs which organizes and controls the computer system. MS DOS,Unix,Windows, etc are some of the popular operating systems.

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