1. Tactile output
1.1. Tactile output provides the user with a physical response from the device
2. Data projectors
2.1. A data projector is a device that takes the text and images displaying on a computer screen and projects them on a larger screen
2.2. Digital light processing (DLP) projector
3. Interactive whiteboards
3.1. An interactive whiteboard is a touch‐sensitive device, resembling a dry‐erase board, that displays the image on a connected computer screen
4. Display devices
4.1. A display device visually conveys text, graphics, and video information
4.2. LCD monitor
4.2.1. Resolution
4.2.1.1. Resolution is the number of horizontal and vertical pixels in a display device
4.2.2. Response time
4.2.3. Brightness
4.2.4. Dot pitch
4.2.5. Contrast ratio
4.3. monitor,Widescreen
4.4. Plasma monitors
4.4.1. are display devices that use gas plasma technology and offer screen sizes up to 150 inches
4.5. HDTV
4.5.1. is the most advanced form of digita television
4.6. CRT monitor
4.6.1. is a desktop monitor that contains a cathode‐ray tube
5. Force‐feedback game controllers
5.1. sends resistance to the device in response to actions of the user
6. Printers
6.1. Ink‐jet printers
6.1.1. forms characters and graphics by spraying tiny drops of liquid ink onto a piece of pape
6.2. Photo printers
6.2.1. A photo printer produces color photo‐lab‐quality pictures
6.3. Laser printers
6.3.1. High‐ speed,High‐ quality,Color,Black‐ and‐ white
6.3.2. multifunction peripheral
6.4. Thermal printers
6.4.1. generates images by pushing electrically heated pins against the heat‐sensitive paper
6.5. Mobile printers
6.5.1. A mobile printer is a small, lightweight, battery‐powered printer that allows a mobile user to print from a mobile device
6.6. Label and postage printers
6.6.1. is a small printer that prints on adhesive‐type material
6.7. Plotters
6.7.1. Plotters are used to produce high‐quality drawings
6.8. Large‐ format printers
6.8.1. reate photo‐realistic quality color prints on a larger scale
6.9. Impact printers
6.9.1. Dot‐matrix printer
6.9.2. Line printer
7. Speakers, headphones, and earbuds
7.1. Headphones
7.1.1. are speakers that cover your head or are placed outside of the ear