Explanation:
Input:
Input is generally defined as the information that is sent or passed to a computer or the information what is taken. The devices that are used to give or offer such information is know as Input devices.
For example:
We usually use keyboard to type and give a specific data to the computer and hence it can be considered as an Input device.
Output:
Output is generally defined as the source of information that is received or processed by the computer or the information what is given back. The devices that are used to give back such information is know as Output devices.
Example:
Printers takes the input from us,process it and gives back the output in the form of printed sheets,Hence it can be considered as Output device.