The input device is responsible for accepting input data and instructions from the user. There are many input devices and it’s used for a special purpose, Like the keyboard, it is a primary input device and it is used to input text’s keyboard, mouse, webcam, microphone, touchpad, and trackball are an example of input devices.
A mouse is a pointing device that used to control the movement of the pointer on the screen. the mouse has two buttons and a scroll wheel. Button used to select the object on the screen and scroll wheel used for easy scrolling up and down through a document or web page.
the keyboard is a primary input device that contains 104-key’s on a keyboard, you can press those keys to make your data inter into the computer.