Mouse
A mouse is an input device that is used to instruct a computer by pointing at and clicking on icons on the monitor. It can have two or three buttons including a scroll wheel. Similar to a keyboard, a mouse can be wired or wireless. A wired mouse connects to the motherboard via a USB cable or a PS/2 connection. A wireless mouse connects to a computer via Bluetooth or an RF receiver. A laptop has a touch pad instead.
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