FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -A trackball mouse is a pointing device consisting of a ball held by a socket containing sensors to detect a rotation of the ball about two axes-like an upside-down ball mouse with an exposed protruding ball.

Detailed explanation-2: -A touchpad or trackpad is a flat surface that can detect finger contact. It is a stationary pointing device, commonly used on laptop computers. At least one physical button normally comes with the touchpad, but the user can also generate a mouse click by tapping on the pad.

Detailed explanation-3: -A trackball is an input device used to enter motion data into computers or other electronic devices. A trackball is essentially a different kind of computer mouse. It is a plastic case containing a ball on the top that moves a computer cursor around on the screen.

Detailed explanation-4: -A mechanical mouse is also known as a ball mouse.

Detailed explanation-5: -Mouse is a pointing device that controls the position of the cursor on a computer screen without using keyboard. It is called pointing device because it is used to point and select option on screen. Optical mouse are most commonly used today.