CPF Theory

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Across
  1. 3. Installing an a______ prevents virus attack
  2. 4. sound from a computer is played through s______
  3. 7. A g_____ card is needed to play computer games
  4. 8. A file c_______ can make a file size smaller
Down
  1. 1. electronic mail
  2. 2. A f______ prevents access to unsecure website
  3. 4. A thumbdrive is an external m_________ device
  4. 5. A p______ should be strong and not shared
  5. 6. A s______ can digitalise a hardcopy paper