Computer Crossword Puzzle

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Across
  1. 2. handheld computers, and similar technology
  2. 3. an electronic device for the visual presentation of data.
  3. 7. designed to block unauthorized access while permitting outward communication.
  4. 10. the retention of retrievable data on a computer or other electronic system
  5. 11. type of graphical user interface
  6. 13. different types of data storage
  7. 14. an electronic device for storing and processing data
  8. 15. a set of things working together as parts of a mechanism
Down
  1. 1. an electrical impulse or radio wave transmitted or received.
  2. 4. a continuous area or expanse which is free, available, or unoccupied.
  3. 5. values of a physical quantity such as voltage
  4. 6. the smallest operable units of storage
  5. 8. facts and statistics collected together for reference or analysis
  6. 9. the application of scientific knowledge for practical purposes
  7. 12. component used to store data