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the blinking item on your screen called cursor.

Types of mice
The Mechanical Mouse: The mechanical mouse has two buttons,
namely, left click and right click buttons. A scroll wheel has now been

added to make the buttons three (3). A roller ball is also on the
underside.
Optical Mouse: Optical mouse is one of the latest innovations which
operate by using an infrared sensor. You can identify an optical mouse
by the tell-tale red glow emanating from its underside.

Cordless Mouse: Cordless mouse, also called a wireless mouse, is a
mouse that connects to a computer without the use of wires. Instead, the
mouse uses wireless technologies, like Bluetooth or Infrared radio
waves. Usually, a USB receiver is plugged into the computer and
receives signals from the cordless mouse. Cordless mice need batteries
to work. An example of a cordless mouse is the Optical Mouse.
Trackball: A trackball is essentially a mouse lying on its back. It

consists of a ball held by a socket containing sensors to detect the
rotation of the ball. The user rolls the ball with a finger to move the
pointer. Since the whole device is not moved, a track ball requires less
space than a mouse.
GStick: The gStick is a computer mouse shaped like a pen. The gStick
works exactly the same way as any mouse, but you hold it differently,

just as you would a pen or pencil. But this means that you can easily
sign your name, draw, paint or sketch, play games and much more.