Paper 1 · ICT
The main component of first-generation computers was
ATransistors
BVacuum tubes and valves ✓ Correct
CIntegrated circuits
DNone of the above
Correct answer: (B) Vacuum tubes and valves — The main component of first-generation computers was vacuum tubes and valves, so that is the answer.
Explanation
★The main component of first-generation computers was vacuum tubes and valves, so that is the answer.
★First-generation computers were built before the transistor was in use.
★They relied on vacuum tubes and valves to switch signals.
★So their main component was vacuum tubes and valves.
★Transistors mark the second generation and integrated circuits the third.
★So the answer is vacuum tubes and valves.
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