Peripherals

Peripherals

1. Input

   • Hardware device used to input data into a computer system for processing
   • Examples are keyboard, mouse, touch screen, camera, bar code scanner
   • Improvements:
   • Eye-typer - track users eye to execute commands
   • Voice input - spoken words translated into text
   • Joystick - mouse for people with limited movement
   • Braille keyboard - for blind people to type text

2. Output

   • Show the output after processing
   • Examples are monitor, printer, speaker, actuator
   • Improvements:
   • Screen reader - reads words or magnifies for people with visual impairment
   • Actuator - creates physical movement from a computer command
   • Voice synthesisers - spoken output for those unable to communicate verbally