A computer mouse is an input device that is used by clicking and scrolling. A basic mouse has a left button, right button and a scroll button.
Two main types of a computer mouse
- Mechanical mouse
- Optical mouse
This type of mouse has a small plastic/metal ball in a socket under it which rolls as the mouse moves. The rolling of the small ball gives the sensor in the mouse the direction in which the cursor/pointer should be moved.
This type of mouse uses light-emitting diode(LED) to detect its movement . The sensor picks the signal and uses it to move the pointer. An optical mouse may have a cord or may not. The one without a cord is called wireless/cordless mouse.