Computing Crossword

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Across
  1. 3. A free, open source, Unix like operating system.
  2. 4. A challenge-response test that determines whether a user is human or an automated bot.
  3. 5. Amprocess in which a function calls itself as a subroutine.
  4. 7. A file sharing network that allows users to send and receive files over the Internet.
  5. 8. A way of measuring a computers speed.
  6. 10. A base-16 number system.
Down
  1. 1. Allows a single computer to run multiple operating systems.
  2. 2. A section of a hard disk.
  3. 6. An etiquette to the Internet.
  4. 9. What drives internet marketing.