Parts of a Computer

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Across
  1. 3. This is the computer brain (3 letters)
  2. 5. You type words and numbers on this (8 letters)
  3. 6. You can take pictures and make videos using this (6 letters)
Down
  1. 1. You see what is happening on the computer here (6 letters)
  2. 2. You heard sound with this (7 letters)
  3. 4. This device moves the arrow on the screen (5 letters)