INPUT AND OUTPUT DEVICES

INPUT AND OUTPUT DEVICES

1. Input devices:

   • allow user to enter data into computer
   • mouse- pointing and inputting device
   • keyboard- used to enter text
   • game controller -used for gaming
   • webcam -used to input visual data. can be peripheral or inbuilt
   • touch screen- input device controlled by finger or stylus
   • microphone -used to input audio data. can be peripheral or inbuilt.
   • joystick- used for gaming -used to control devices e.g. robots, CCTV cameras
   • graphics tablet -used to input drawings
   • scanner -digitises printed documents -Optical Character Recognition (OCR) can turn text into an editable format
   • touch-sensitive jog dial -used for simple actions like skipping a song

2. Output devices

   • speakers -peripheral or inbuilt devices allowing you to hear audio ouput
   • docking station -amplifies audio ouput of small devices -charges device
   • allow the user to view, hear or print processed data
   • headphones -allow just one person to hear audio output
   • printer -allows you to produce 'hard copy'
   • headset -combines microphone and headphones to input and output audio data
   • screen -inbuilt display screens (e.g. laptop, smartphone) or monitor

3. storage devices

   • allow the user to store data so it can be used again

4. WORKED EXAMPLE Jo has a new games console. State two input devices that she might use with it.

   • 1) A steering wheel 2) A balance board
   • target F-E
   • 2 marks

5. Battery life, RAM, Storage and Processor Speed must alll be considered when buying a new computer

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