input and output

input and output

1. an input device is an instruction you put an instruction into a computer

   • input
   • examples of manual input devices a keyboard, a mouse a microphone, a camera and a joy stick
   • examples of automatic input devices a barcode reader, sensors and biometric devices

2. an output device is an object that displays the instructions given to the computer

   • output
   • sound outputs: earphones, headphones, speakers,
   • visual outputs: moniter, projector, light,