Computer science

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Across
  1. 1. fastest thing in a computer
  2. 4. protect(a network or system) from unauthorized access with a firewall.
  3. 7. friends with ROM
  4. 8. friends with input
Down
  1. 2. physical components of a computer
  2. 3. Test performed under a controlled environment
  3. 5. Friends with RAM
  4. 6. friends with output