Riddle-O-Mania

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Across
  1. 4. - Physical computer parts.
  2. 6. - Harmful software.
  3. 10. - Internet traffic director.
  4. 12. - Secure data with a key.
  5. 14. - Connected computers.
  6. 15. - Instructions for computers.
  7. 17. - Text-based interface.
  8. 19. - Not physical, simulated.
  9. 20. - Computer programs.
  10. 21. - About a billion bytes.
  11. 22. - Base-2 numbering system.
Down
  1. 1. - Web scripting language.
  2. 2. - Request for data.
  3. 3. - Character encoding.
  4. 5. - Interaction point.
  5. 7. - Identify and fix errors.
  6. 8. - Reasoning in programming.
  7. 9. - Core of an OS.
  8. 11. - System running software.
  9. 13. - Communication rules.
  10. 16. - Network protection barrier.
  11. 18. - Step-by-step solution instructions.