Crossword puzzle

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Across
  1. 1. short term memory
  2. 2. brain of the computer
  3. 3. switches on/off
  4. 6. represents data using 2 digits (1/0)
  5. 7. connects all the pieces of the computer
  6. 10. stores important/permanent memory
  7. 11. powers the computer to function using electricity
  8. 13. synchronizes all the processing(measured in Hz)
Down
  1. 1. fast and short memory
  2. 2. makes the fetch/decode/execute system
  3. 4. performs logical and arithmetic equations
  4. 5. works with discs
  5. 8. protects the components of a computer
  6. 9. determines the quality of the vidoes, pictures and animation on your monitor
  7. 12. sends data to register