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Subject :NCO    Class : Class 5

Identify the following.
- It is an input device that captures data formed by light and dark marks on specific positions of the paper.
- It requires a special printed paper that contains boxes or circles for shading.
- It translates the shaded marks into electrical signals based on the presence or absence of shaded marks.

A
B
C
D


Ans 1:

Class : Class 6
Looking at the question description looks like A - bar code reader. Dont know why B is the answer given

Ans 2:

Class : Class 5
A

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