input/output

input/output

1. input

   • key board
     • commonly used entry method the user presses keys.
   • pointing devices mouse
     • a mouse is the most popular pointing method for computer
   • microphone
     • microphone used to input sound into sound into a computer
   • barcode scanner
     • barcode reader are used to input data automatically from barcodes it reads them using red light
   • joystick/games controller
     • joysticks are used to play games by controlling th way that something on the screen
   • webcam
     • digital image captured an inputted into the computer
   • sensors
     • they are used detect physical objects for input to the computer

2. output

   • flat-

3. both

   • touch screen
     • used with mobile phones, tables and PC. used as a input by tapping. an output is showing the screen

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