An American Engineer named 'Douglas Engelbart' invented which piece of computer hardware in 1964?

Options :
  1. The floppy disk
  2. The hard disk
  3. The modem
  4. The mouse
Answer and Explanation :-

Answer: Option 4


Sorry there is no explanation for this answer. Please help others by posting your response below

How do you rate this queston?  Very Easy  Easy  Average  Above Average  Tough

Previous Question : Jonathan Scobie is famous for inventing

Next Question : The only person in history to hold a patent on a chemical element is

Click here for online test on Discovery & Inventions


 (Getemail alerts when others member replies)

You wouldn't have taken Rose to such a place, would you?""Of course not, but she is a little girl, and I'm-""My life", he interrupted quietly. "You're my entire life. If anything ever happens to you, Holly, there is nothing left for me.
-Lisa Kleypas Where Dreams Begin