Input and output devices

Anything that is used to control a computer system or to send data to it is an input device.

Input devices include:

  • Keyboard
  • Mouse
  • Track pad
  • Graphics tablet
  • Webcam
  • Microphone
  • Scanner

Devices that the computer system uses to send out or display information from the processor are called output devices.

Output devices include:

  • Monitor
  • Speaker
  • Printer
  • Projector
  • Plotter

Input and output hardware.

Some devices act as both input and output:

  • Touchscreen - fingers control a device through selecting icons. Screen also outputs images. Used for tablets, smartphones and some supermarket self-scan checkouts.
  • Interactive white board - a touch-sensitive surface linked to a computer and a projector.
  • Games controller - feedback gives outputs that the user can sense based on inputs, eg a rumbling sensation to reflect an explosion or collision onscreen.
  • Haptic glove - wearable technology that gives designers touch feedback based on virtual surfaces and objects

Game controllers vibrating, mobile phone touch screens and haptic gloves are examples of haptic feedbackA games controller, a mobile phone and a haptic glove