1. Who invented Computer ?

Answer:

Charles Babbage

2. Who invented Proton ?

Answer:

Ernest Rutherford

3. Who invented by Electric Lamp ?

Answer: Thomas Alva Edison of U.S.A. in 1879

4. Who invented Safety Pin ?

Answer: Walter Hunt of U.S.A. in 1849

5. Who invented Transformer ?

Answer:

Ottó Bláthy

6. Who invented Periodic table ?

Answer:

Dmitri Mendeleev invented Periodic Table

7. Who invented Ball-Point Pen ?

Answer: John J. Loud of U.S.A. in 1888