1.

Who invented : (i) Computer, (ii) Transistor, (iii) Electric bulb and Telegraphy, (iv) Radar, (v) Wireless telegraphy (vi) Telephone?

Answer»

(i) Charles Babbage, (ii) J. Bardeen, (iii) A. Edison, (iv) Apleton, (v) Marconi, (vi) Graham Bell.



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