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Operating Systems (User-driven (SUM (User Management) (User (Permissions…

- - - - Language
      - Permissions
        
        Access
      - Time zone
      - Account
  - - - USB
      - Mouse
      - Communication
        
        Instructions
  - - - Display
        
        Input
      - Communication
- - - - Files
        
        Read
        
        Wrtie
  - - - Deciding
        
        Allocated
        
        Free
  - - - Management
      - Exchange
      - Data
        
        Dedicated
      - Synchronisation