Test Year 9

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Across
  1. 4. Executes instructions and controls the computer
  2. 8. Connects all computer components together
  3. 11. Inputs text into the computer
  4. 12. Locks files and demands payment
  5. 13. Websites accessed using the Internet
  6. 15. Temporary memory storing data in use
  7. 17. Detects and removes malware
  8. 19. Global network of computers
  9. 21. Extra verification step for security
Down
  1. 1. Portable storage device
  2. 2. Disguises itself as safe software
  3. 3. Attaches to files and spreads when opened
  4. 5. Small chunks data is split into
  5. 6. Spreads automatically across networks
  6. 7. Secretly collects user data
  7. 9. Permanent storage for data
  8. 10. Malicious software
  9. 14. Controls the pointer
  10. 16. Displays visual output
  11. 18. Scrambles data to keep it safe
  12. 20. Blocks unauthorised access