Computer crossword puzzle

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Across
  1. 2. data isn't lost when power is removed
  2. 5. used to measure clock speeds
  3. 7. used to click on displayed images on the computer
  4. 8. where everything is stored
  5. 10. Another name for this is cpu
  6. 11. physical components of a computer
Down
  1. 1. electronic instructions that tell the computer what to do
  2. 3. Allows communication between all components
  3. 4. another name for ROM
  4. 6. preforms logical and arithmetic operations
  5. 9. enhances the computers graphic display