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টাচ স্ক্রিন মোবাইল ফোনের আবিষ্কারক কে ?

Ferdows blog

প্রশ্নঃ টাচ স্ক্রিন মোবাইল ফোনের আবিষ্কারক কে ?

প্রশ্নঃ টাচ স্ক্রিন মোবাইল ফোন এর আবিষ্কারক কে ?

ক. বিল গেটস

খ. স্টিভ জবস

গ. চার্লস ব্যাবেজ

ঘ. জর্জ বুল

উত্তরঃ স্টিভ জবস

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