Central processing unit

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Across
  1. 4. responsible for retrieving data.
  2. 5. a cycle which controls the CPU behaviour.
  3. 7. information which is changed into secret code.
  4. 8. stores frequently needed instructions/data.
Down
  1. 1. Universal computer language.
  2. 2. it is measured in Hertz.
  3. 3. a type of logic unit which carries out calculators.
  4. 6. more of it gives out a faster CPU.