System software

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Across
  1. 4. This is required to allow the user to communicate with the hardware
  2. 5. It works by moving files on the hard drive to make better use of memory
  3. 7. What the user interacts with when on a computer
Down
  1. 1. The way of remembering the functions of the operating system
  2. 2. Removes temporary files from the computer to free up memory
  3. 3. Keep the computer running smoothly
  4. 6. Prevents and removes viruses on a computer system
  5. 8. Stops access from certain types of traffic in a network