Hardware evolution (earliest to latest): 1. Silicon chips, 2. Transistors, 3. Vacuum tube, 4. Integrated circuits.
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A4, 2, 3, 1
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B3, 4, 1, 2
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C3, 2, 4, 1
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D4, 1, 3, 2
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ENone of these
Answer
Correct Answer: 3, 2, 4, 1
Explanation
Introduction / Context:This sequence traces key milestones in electronic hardware. Recognizing the historical order helps in understanding how miniaturization and performance evolved.
Given Data / Assumptions:
- Technologies: Vacuum tube → Transistor → Integrated circuit (IC) → Silicon chips (LSI/VLSI).
- Order needed: earliest to latest.
Concept / Approach:Begin with vacuum tubes (early electronic amplification), then the invention of the transistor replaced tubes. Multiple transistors fabricated together produced ICs. Progressive integration yielded silicon chips with very large-scale integration.
Step-by-Step Solution:
Earliest: 3 (Vacuum tube).Next: 2 (Transistors).Then: 4 (Integrated circuits).Latest: 1 (Silicon chips).Verification / Alternative check:Matches computing history timelines from mid-20th century to modern semiconductor fabrication.
Why Other Options Are Wrong:They invert the well-known chronology.
Common Pitfalls:Confusing ICs with discrete transistors; assuming “silicon chips” preceded ICs.
Final Answer:3, 2, 4, 1