Let me told you what is an input device. check it out ;)
Input device are thing we use to put information into a computer in other word input device is an computer hardware equipment used to provide data and control signal to an information processing system such as a computer or other information appliance, its make up the hardware interface between a computer and a scanner or 6DOF controller.
| The mouse is used to open and close files, navigate web sites, and click on a lot of commands (to tell the computer what to do) when using different applications.|
Microphone - A microphone is used to record sound. The sound is then saved as a sound file on the computer.
|Camera - most cameras are used during live conversations. The camera transmits a picture from one computer to another, or can be used to record a short video.|
Keyboard - The keyboard is a way to input letters or numbers into different applications or programs. A keyboard also has special keys that help operate the computer.
This is the info that i had share to all of you, hope this info will help you.