The mouse was invented by Douglas Engelbart in 1964.
The wire of the mouse looks like the tail of real mice.
In the Computer system, Mouse is a handheld input device that takes the instructions and forwards it to systems. Its control a cursor in GUI and it can help to you by a move to select icons, file, and folder.
The mouse has 2 buttons and one scroll ball.button is known as left and right click for selecting and taking the step . A scroll ball is used for scrolling the page.
Mouse came with PS/2 Port that is used to plug in your computer. Now it is available in USB Port and wireless also.
In the laptop, there is the option of mouse used as a touchpad, it works the same like the mouse.