A computer works with the help of many devices. Among these devices few are optional because you can work on computer even in the absence of these devices. Which one of the following devices is optional for the computer to work?

A computer works with the help of many devices. Among these devices fe

1.	A computer works with the help of many devices. Among these devices few are optional because you can work on computer even in the absence of these devices. Which one of the following devices is optional for the computer to work?
A.	Keyboard
B.	CPU
C.	Monitor
D.	Printer
E.	None of these
Answer» E. None of these

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A computer works with the help of many devices. Among these devices few are optional because you can work on computer even in the absence of these devices. Which one of the following devices is optional for the computer to work?

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