Hello friends, my name is Arjun Gupta and today we see about "LASER KEYBOARD". Introduction- Without using keyboard, it is quiet difficult to operate your computer or laptop. Most of us, use keyboard almost every day for composing e-mail, writing any document or search any website/blog. Similarly a new type of keyboard is invented(LASER KEYBOARD) for portability of users, thus in this session we learn to understand, how the laser keyboard works. Working of Virtual/Physical keyboard- Most common thing is that all keyboard whether it is virtual or physical, are input devices. Ones you hit any button in the keyboard, you are telling to deliver any command to the system to write any alphabet, number or symbol, the traditional keyboard is hooked up with a cable between your computer and keyboard, a processor is implemented in the computer to understand the electrical impulses, when we hit any key in the keyboard, it's circuit is closed and send t...