crossword - computer technology

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Across
  1. 3. physical machinery that makes a computer system
  2. 4. composed of hardware & software
  3. 6. data going out from computer
  4. 7. example of output devices
Down
  1. 1. example of input devices
  2. 2. entering data to computer
  3. 4. Central processing unit
  4. 5. commands that instruct the computer to perform