নিচের কোনটি কম্পিউটারের ইনপুট এবং আউটপুট উভয় যন্ত্র রূপে ব্যবহৃত হয়?
A. টাচস্ক্রীন
B. স্পিকার
C. প্রিন্টার
D. স্ক্যানার
সঠিক উত্তরঃ
A.
টাচস্ক্রীন
Explanation:
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