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Vacuum Tubes were replaced by?

1. Transistors
2. Integrated Circuits
3. VLSI or Microprocessors
4. Bio-chips

Correct answer: Transistors

Solution

Computer generations: 1st gen = Vacuum Tubes; 2nd gen = Transistors (replaced vacuum tubes in ~1956-1963); 3rd gen = Integrated Circuits; 4th gen = VLSI/Microprocessors; 5th gen = AI/Parallel processing.

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