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					 What is the best way to order the progression in Hardware?
1- Silicon chips
2- Transistors
3- Vacuum tube
4- Integrated circuits 
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- 4, 2, 3, 1
 - 3, 4, 1, 2
 - 3, 2, 4, 1
 - 4, 1, 3, 2
 
 
Correct Option: C
Ordering the progression in Hardware :-
Vacuum Tube (1st Generation : 1940–55) →  2. Transistors (2nd Generation: 1956 – 63) →  4. Integrated Circuits (3rd Generation :1964 – 71) →  1. Silicon chips.