Paper 1 · ICT
UGC NET June 2024 Re-Exam (23.08.2024) Shift-I
Identify the correct order of the following major technological changes in the development of computers, based on the first to fourth generation. Choose the correct answer from the options given below.
- 1. Transistors
- 2. Microprocessor
- 3. Vacuum tubes
- 4. Integrated circuits
A1, 3, 4, 2
B2, 1, 3, 4
C4, 1, 3, 2
D3, 1, 4, 2 ✓ Correct
Correct answer: (D) 3, 1, 4, 2 — The correct order is vacuum tubes, transistors, integrated circuits, microprocessor, so the answer is 3, 1, 4, 2.
Explanation
★The correct order is vacuum tubes, transistors, integrated circuits, microprocessor, so the answer is 3, 1, 4, 2.
★The first generation of computers used vacuum tubes.
★The second generation used transistors, which were smaller and more reliable.
★The third generation used integrated circuits combining many transistors on a chip.
★The fourth generation used the microprocessor, a single chip holding the whole CPU.
★So the order is vacuum tubes, transistors, integrated circuits, microprocessor, giving 3, 1, 4, 2.
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