1. Who invented Floppy disk ?

Answer: IBM in 1970

2. Who invented Chemotherapy ?

Answer: Paracelsus of Switzerland

3. Who invented Laptop ?

Answer:

Adam Osborne in 1981.

4. Who invented Helicopter ?

Answer:

Igor Sikorsky

5. Who invented Bakelite ?

Answer: Leo H. Baekeland of Belgium in 1907.

6. Who invented Diesel Engine ?

Answer: Rudoff Diesel of Germany in 1895

7. Who invented Computer ?

Answer:

Charles Babbage