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Software (System Software (Operating System (Essential, as it manages all…

- - - - Disc Defragmentation
        
        A computer stores its files on a disk, and even though large disks may not have a single continuous block of empty space to hold a single file, computers ‘break up’ a file into little parts, or fragments
      - Task Scheduling
        
        New viruses are created all the time to take advantage of security flaws in software. Software updates often ‘patch’ these security risks
      - Data backup / restore
        
        Incremental
        
        full
        
        cloud
      - Antivirus
        
        New viruses are created all the time to take advantage of security flaws in software. Software updates often ‘patch’ these security risks
- - - - The OS switches between computers, giving a lot of processing power (a time slice) for a short time before going to the next in line.
- - - - Low cost, sometimes freeware
  - - - High cost