Computer mouse ports and parts
Today, most computer mice connect to a computer using a USB port. Below is a list of ports and wireless connections a mouse is capable of using.
- Bluetooth
- Infrared
- PS/2 Port
- Serial Port
- USB
What are the parts of a computer mouse?
The parts of a computer mouse can vary by the type of computer mouse. Below is a general overview of the parts found on most computer mice.
Buttons
Today, almost all computer mice have at least two buttons, a left button and right button for clicking and manipulating objects and text. In the past, there were mice with only one button. For example, many of the early Apple computer mice only had one button.
Ball, laser, or LED
Bottom of optical-mechanical and optical computer mouse
A desktop mouse uses a ball and rollers if it's a mechanical mouse or a laser or LED if it's an optical mouse. These components track the movement of the mouse on an x-axis and y-axis and move the mouse cursor on the screen. In the picture is an example of the bottom of a mechanical and optical mouse.
Mouse wheel
Today's desktop computer mice also usually include a mouse wheel that allows you to scroll up and down on a page.
Circuit board
To transmit (input) all mouse signal information, clicks, and other information, the mouse must also have a circuit board with integrated circuits.
Cable or wireless receiver
For a corded mouse, it also includes a cable with a plug that connects to the computer. Today, most corded mice connect to the USB port. If your computer has a wireless mouse, it needs a USB wireless receiver to receive the wireless signal and input it into the computer.
Other parts
If you're using a laptop, some of the above components mentioned earlier are not required. For example, a touchpad does not use a ball, laser, or LED to control movement; it uses your finger on the touchpad. Other parts include a ball for trackball mice, extra buttons on the thumb side of the mouse, and nubs used with laptop mice.
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