parts of a computer

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Across
  1. 3. sound comes out of them
  2. 5. brains of the computer
  3. 6. something you type with
  4. 7. variable in a computer
  5. 8. main chip in a computer
  6. 9. small disk drive used in computers to transfer data
  7. 11. component which supplies power to the computer
  8. 13. squeaks
Down
  1. 1. stores data even when the machine is off
  2. 2. small digital video cam conected to the computer
  3. 4. each component is attached to it
  4. 10. output device that displays infromation
  5. 12. where everything comes together