This document presents information about different types of computer input devices. It defines an input device as something that allows users to give commands and write paragraphs into a computer. It then lists and provides brief descriptions of common input devices like the keyboard, mouse, scanner, microphone, joystick, webcam, trackball, touchscreen, light pen, and stylus. For some devices it provides examples of their uses, like using a microphone to record sound or a touchscreen to interact with a computer by touching images or words on the screen. The document concludes by declaring that all the information presented is true and correct.