Question

Once
(b) Which of the fol owing is/are input devices?
(1) Light Pen
(ii) Microphone
(iii) Bar Code Readers
(iv) All of these​

Answer 1

Explanation:

1.input

2.input

3.output

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Answer 2

Answer:

bacche tumhara last option sahi lag raha hai

Explanation:

(iv) all of these