Mouse
A Mouse is a Infrared or ball-socket controlled input device. It allows the user to click on different items.
A Keyboard is simply a typing device with numbers, letters and symbols.
A Webcam is a video camera that sends images from one computer to another over a network or the internet.
Scanner
A Scanner is an input device that optically scans images, printed text, handwriting, or an object, and converts it to a digital image.
A Laserpen is an input device that interacts with a graphics tablet. It touches the graphics tablet much like a touchpad only using a pen.
Joystick
A joystick is an input device consisting of a stick that pivots on a base and reports its angle or direction to the device it is controlling.
Digital Camera
A Digital camera is a device for capturing images for transfer to a computer or viewing on a camera monitor
Mobile Phone