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1. CRTs, LEDs and LCDs are—
- A. Used for output, not for input
- B. Used for output, not for input
- C. Used for output, not for input
- D. Used for output, not for input
Answer: Option A
Explanation:
CRT - Cathode Ray Tube (এক ধরনের মনিটর, output device)
LCD - Liquid Crystal Display (এক ধরনের Display, output device)
LED - Light Emitting Diode. (এক ধরনের Light/Display, output device)
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