operating systems

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  • operating systems
    • user interface
      • graphical user
        • Unta visual way of interacting with a computer using items such as windows, icons, and menus, used by most modern operating systems.itled
      • command line
        • a user interface to a computer's operating system or an application in which the user responds to a visual prompt by typing in a command on a specified line,
    • memory management
      • Different processes running at the same time must not interfere with one another. This means they have to use different parts of the computer’s memory.
      • The OS uses buffering to set aside memory for the temporary storage of data.
        • A process may output data and leave it in the buffer. This means that processes can each get on with their jobs at their own rate.
          • It is only when the buffer is full that processes will need to wait.
    • user management
      • User Management is an authentication feature that provides administrators with the ability to identify and control the state of users logged into the network.
    • file management
      • The OS manages how data is organised into files.
        • This makes it easier for the user to see files using programs like the Windows File Explorer or Mac OS X Finder.
      • The OS organises where and how files are stored, deleted, read, found and repaired.
        • It detects errors such as missing disks or incorrect file names, and informs the user that errors have occurred.
    • Peripheral management
      • Peripheral management controls peripheral devices by sending them commands in their own computer language.
      • The software routine that knows how to deal with each device is known as a driver, and the OS needs drivers for the peripherals connected to the computer.


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