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নিচের কোনটি ইনপুট এবং আউটপুট উভয় ডিভাইস হিসেবে ব্যাবহৃত হয়?
মাউস
প্লটার
মডেম
কীবোর্ড
ANSWER : 3
Descrption
<p>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.</p> <p>mouse , keyboard = only for input becasue it sends signal to the computer.</p> <p>plotter is an printing machine thus we can say it an output device.</p> <p>টাচ স্কিনও একটি ইনপুট আউটপুট ডিভাইস। </p>
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