1. Who invented Safety Pin ?

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

2. Who invented Floppy disk ?

Answer: IBM in 1970

3. Who invented Bicyle ?

Answer: Kirkpatrick Macmillan of Britain.

4. Who invented Laptop ?

Answer:

Adam Osborne in 1981.

5. Who invented Radiocarbon ?

Answer:

Willard Libby

6. Who invented Morphine ?

Answer: Friderich Sertumer of Germany in 1805

7. Who invented Super Computer ?

Answer:

Seymour Cray