Computing systems and networks - systems and searching

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Across
  1. 6. A small device you move to control the pointer
  2. 8. Another search engine that also gives email
  3. 10. A person who uses a computer
  4. 11. A very popular search engine
  5. 15. The device you use to type letters and numbers
  6. 16. The biggest network in the world
  7. 18. The part of a system where information enters
  8. 19. A machine that gives a paper copy of your work
  9. 20. A company that makes Windows
Down
  1. 1. A person that is also part of a system
  2. 2. The brain of the computer that processes information
  3. 3. The machine we use to compute and work
  4. 4. The word you type to find things online
  5. 5. A group of parts working together
  6. 7. Another search engine starting with “B”
  7. 9. The part of a system that shows the result
  8. 12. The flat part where you watch videos or games
  9. 13. A group of computers connected together
  10. 14. The part of a computer that shows pictures and text
  11. 17. The middle step in a system, between input and output