Question

4) Choose the correct answers:- (2 marks)
a) It can be moved in many directions and sends signal, direction of movement in
computer is.
1) Webcam ii) Barcode reader
none of these
b) How many type of alignment are there:-
i) 3
ii) 4
5​

Answer 1

Answer:

1-barcode reader

2.4

Explanation:

Answer 2

Answer:

4) (a)(ii)barcode reader

(b)(ii) 4