A hand-held device which reads marks or characters on paper by detecting photo-sensitivity is known as

A hand-held device which reads marks or characters on paper by detecti

1.	A hand-held device which reads marks or characters on paper by detecting photo-sensitivity is known as
A.	Light pen
B.	Optical-wand
C.	Plotter
D.	All of the above
E.	None of the above
Answer» C. Plotter

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A hand-held device which reads marks or characters on paper by detecting photo-sensitivity is known as

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