some words

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Across
  1. 3. Input device for entering text and numbers
  2. 4. Optical storage Device
  3. 6. science that studies the automatic treatment of information
  4. 8. The smallest unit of measurement in computer science
Down
  1. 1. is a magnetic storage médium
  2. 2. Processor of texts that is part of the siute Office
  3. 5. a graphic element or to dr aw
  4. 7. Random access memory