Paper 1 · ICT
UGC NET June 2024 Cancelled (18.06.2024) Shift-II
Which of the following computer devices are output devices only? Choose the correct answer from the options given below.
- 1. Track ball
- 2. CRT monitor
- 3. Number pad
- 4. Plotter
A1 and 2 only
B1, 2 and 4 only
C3 and 4 only
D2 and 4 only ✓ Correct
Correct answer: (D) 2 and 4 only — The output-only devices are the CRT monitor and the plotter, so the answer is 2 and 4.
Explanation
★The output-only devices are the CRT monitor and the plotter, so the answer is 2 and 4.
★An output device only displays or produces results from the computer.
★A CRT monitor displays output on screen, so it is output only.
★A plotter draws output on paper, so it is output only.
★A track ball is an input device used to move the pointer.
★A number pad is an input device used to type numbers, so statements 1 and 3 are excluded.
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