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Wednesday, July 24, 2019
पहला कंप्यूटर माउस किसने बनाया था ?
(A) विलियम इंग्लिश
(B) रोबर्ट जवाकी
(C) डगलस एन्जलबर्ट
(D) इनमें से कोई नहीं
Ans- C
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