What is the best way to order the progression in Hardware?

1.Silicon chips        2. Transistors          3. Vacuum tube      4. Integrated circuits
(a)4, 1, 3, 2           (b) 3, 2, 4, 1          (c) 3, 4, 1, 2           (d) 4, 2, 3, 1

Anurag Mishra Professor Asked on 9th December 2015 in Reasoning Questions.
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    Answer: (b) 3, 2, 4, 1

    Explanation:-
    The best way to order is the progression  in hardware :-
    Vaccum tube >  Transistors  > Integrated circuits  >  Silicon chip. 

    Then, the best order is 3, 2, 4, 1.

    Hence, the correct answer option (b) 3, 2, 4, 1. 

    Anurag Mishra Professor Answered on 9th December 2015.
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