Input/output Device Functions

Input/output Device Functions

1. Mouse, Pointing device

   • input
     • mouse is the most popular pointing and selected used in computing

2. Keyboard

   • Input
     • User presses a key and a code ius entered into the computer

3. Speakers

   • Output
     • Use externally sound to create high quality audio that's outputted through the speakers

4. Touch Screen

   • Input And Output
     • Widely used on touch screen phones, tablets and some pcs. also ised on interactive whiteboards. Used as input when you touch the screen, output when it displays something

5. Joystick

   • Input
     • Used to play games on computer, controls how something moves, can be used to control things like wheelchairs

6. Webcam

   • Input
     • Digital image captured and inputted into a system

7. Microphone

   • Input
     • Used to input sound into a computer system

8. Barcode Scanner

   • Input
     • Used to input data it records from barcodes, scans with visable red light, identifies products

9. Games conroler

10. Flat screen monitor

    • Output

11. Sensors

    • Input
      • used to detect physical variables for computer input

12. Inkjet Printer

    • Output
      • smaller than laser printers, used in the home environment speed and noise is not a problem

13. Laser Printer

    • Output
      • Used mainly in business, operate quietly and very quickly, similar to photocopiers

14. LED lights

    • Output
      • Often used as output indicators from control system

15. Actuator

    • Output
      • Output from control system, contains a motor

16. Speciality Devices

    • Output
      • for disabled users, i.e. eye tracking, foot operated mice, braile printers