hardware and software (leo)

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Across
  1. 3. Short for Central processing unit
  2. 5. and or not
  3. 8. power point word excel
  4. 9. logic gate
  5. 12. word OPERATING SYSTEM
  6. 15. has logic gates
  7. 16. logic gate
  8. 20. protect from viruses
  9. 21. Logic gate
Down
  1. 1. keyboard monitor pc
  2. 2. makes file storage smaller
  3. 4. bigger than mega bytes
  4. 6. smaller than gigabytes
  5. 7. something you can use on a pc
  6. 10. power point anti-virus
  7. 11. refresh rate
  8. 13. app is short
  9. 14. Link all components together
  10. 17. use these to open more tabs
  11. 18. disk drive
  12. 19. helps if you loose work