purpose and types of operating system

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Across
  1. 5. / provides a fast response to external events
  2. 7. / gives the user the impression that multiple programs are run at the same time
  3. 8. / software that manages the computer
  4. 9. / communication through protocols to other devices
  5. 10. / allows users to interact with the operating system to manage files
Down
  1. 1. / combines the processing power of multiple processors to do a single task
  2. 2. / uses device drivers to allow operating system instructions to be understood by specific hardware devices
  3. 3. / allows users to interact with applications
  4. 4. / allocates and manages memory used using paging and segmentation
  5. 6. / run with dedicated hardware so it is run with maximum efficiency