The document discusses and provides examples of different types of input devices for computers. It describes keyboards, mice, light pens, barcode readers, and Xbox controllers. Keyboards and mice are the most common input devices and allow users to type and point/click. Other examples mentioned include joysticks, microphones, scanners, webcams, and touch screens. Each type of device is described in 1-2 paragraphs explaining what it is and how it functions as an input mechanism.