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1. নিচের কোনটি ইনপুট এবং আউটপুট দুটোই?
- A. মনিটর
- B. মনিটর
- C. মনিটর
- D. মনিটর
Answer: Option D
Explanation:
modem (মডেম) stands for mo = modulator and dem = demodulator. hence it makes analog to digital and digital to analog signals. when you pass a signal then it sends this signal to the BTS(base transceiver station) from MS(mobile station) and does reverse. so it is a input and output device.
mouse , keyboard = only for input becasue it sends signal to the computer.
plotter is an printing machine thus we can say it an output device.
টাচ স্কিনও একটি ইনপুট আউটপুট ডিভাইস।
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