Who invented Computer

CBSE Class 11 CBSE Class 11 Physics
,
1

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

2

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