1. Who invented Laptop ?

Answer:

Adam Osborne in 1981.

2. Who invented Ballistic missile ?

Answer: Wemher von Braun of Germany in 1944.

3. Who invented Locomotive ?

Answer:

George Stephenson was first to buit steam locomotives.

4. Who invented X-ray ?

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

5. Who invented Super Computer ?

Answer:

Seymour Cray

6. Who invented Helicopter ?

Answer:

Igor Sikorsky

7. Who invented Microphone ?

Answer:

Emile Berliner invented the first microphone in 1876.