1. Who invented Floppy disk ?

Answer: IBM in 1970

2. Who invented colour television ?

Answer:

Peter Carl Goldmark

3. Who invented X-ray ?

Answer: W.K. Roentgen of Germany in 1895.

4. Who invented Logarithms ?

Answer:

John Napier (Scotland) invented Logarithm

5. Who invented Atomic Bomb ?

Answer: J. Robert Oppenheimer of U.S.A. in 1945

6. Who invented Radiocarbon ?

Answer:

Willard Libby

7. Who invented Ball-Point Pen ?

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