1. Output device
1.1. Speakers, headphones, and earbuds
1.1.1. Headphones
1.1.1.1. are speakers that cover your head or are placed outside of the ear
1.1.2. Earbuds
1.1.2.1. (also called earphones) rest inside the ear canal
1.2. Data projectors
1.3. Interactive whiteboards
1.4. Force-feedback game controllers
1.5. Tactile output
1.6. Printers
1.6.1. nonimpact printer
1.6.1.1. Ink-jet printers
1.6.1.1.1. forms characters and graphics by spraying tiny drops of liquid ink onto a piece of paper
1.6.1.2. Photo printers
1.6.1.3. Laser printers
1.6.1.4. Thermal printers
1.6.1.5. Mobile printers
1.6.1.6. Label and postage printers
1.6.1.7. Plotters
1.6.1.8. Large-format printers
1.6.2. multifunction peripheral (MFP)
1.6.2.1. is a single device that prints, scans, copies, and in some cases, faxe
1.6.3. thermal printer
1.6.3.1. generates images by pushing electrically heated pins against the heat-sensitive paper
1.6.4. mobile printer
1.6.4.1. is a small, lightweight, battery-powered printer that allows a mobile user to print from a mobile device
1.6.5. label printer
1.6.5.1. a small printer that prints on adhesive-type material
1.6.6. Plotters
1.6.6.1. are used to produce high-quality drawings
1.6.7. Large-format printers
1.6.7.1. create photo-realistic quality color prints on a larger scale
1.6.8. Impact printers
1.6.8.1. form characters and graphics on a piece of paper by striking a mechanism against an inked ribbon that physically contacts the paper
1.7. Display devices
1.7.1. monitor
1.7.2. LCD monitor
1.7.2.1. uses a liquid compound to present information on a display device
1.7.3. Widescreen
1.7.4. Plasma monitors
1.7.4.1. display devices that use gas plasma technology and offer screen sizes up to 150 inches
1.7.5. CRT monitor
1.7.5.1. a desktop monitor that contains a cathode-ray tube