Operating Systems

  • Created by: horme0520
  • Created on: 11-03-20 12:04
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  • Operating Systems
    • Systems software
      • Managing users' instructions through the user interface
      • Manages peripheral devices
      • Controls computing processes
      • Allocates CPU and memory resources
    • Application software
      • End-user program
      • Perform user-identified tasks
        • Word processing and photo editing
        • Used for entertainment - games and viewing videos
    • Memory management
      • Many programs running at the same time - multitasking
      • Activities being performed are called processes
        • Some are visible as application software
        • Usually in the background that the user cannot see
    • File management
      • Creates a folder and file structure for data
      • Used to control file permissions on networks and shared computers
        • Can control who can open a file, write to a file, edit it or delete it
      • Asks for confirmation when you try to delete a file
    • User interface
      • Allows the user to communicate with the computer
      • Many operating systems provide a Graphical User Interface
        • Examples: Windows, Icons, drop-down Menus and Pointers (WIMP)
    • User management
      • On networks and shared computers
      • Login names and passwords are used to allocate permissions for access to files
      • Used in organisations to prevent individuals form making changes to computer software or inappropriate use
    • Peripheral device management
      • Use this for input and output of data
      • Input devices
        • Keyboard
        • Mouse
        • Microphone
        • Webcam
        • Scanner
      • Output devices
        • Printer
        • Loudspeaker
        • External or internal monitor
        • Headphones


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