This document categorizes and lists common input and output devices for computers. It separates input devices into categories of text, graphic, audio, and video and lists keyboards, webcams, scanners, mice, microphones, graphic tablets, pointing sticks, MIDI keyboards, CCTV, digital cameras, and barcode readers. Output devices are also separated into categories and include monitors, speakers, LCD projectors, printers, plotters, and microfilm as ways for computers to output text, graphics, audio, and video.
