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TYPES OF OPERATING SYSTEM

                 Operating system can be categorised based on control and the applications they support. Here
                 are the important types:

                    Single-User  Operating  System:  This type  of operating  system allows only one user to
                    access the computer system at a time. The most commonly used single-user operating system
                    is DOS.

                    Multiprocessing Operating System: A multiprocessing operating system uses more than one
                    Central Processing Unit (CPU) to manage the computer's functions. These CPUs communicate
                    with each other to coordinate  operations,  providing higher speed and the ability to run

                    multiple applications simultaneously.
                    Multi-Tasking Operating System: A multi-tasking operating system allows users to
                    execute multiple tasks on one computer simultaneously. All tasks share common processing

                    resources like the CPU. This type of operating system also allows for changing the priority
                    of tasks according to requirements. Common examples include Windows XP, Windows 7,
                    Windows 10, UNIX, and Linux.

                    Multi-User Operating System: In this type of operating system, multiple users can access the
                    computer simultaneously. Examples include Linux and some versions of Windows.
                    Real-Time Operating System: This operating system is designed to do tasks quickly and
                    within a set time. It’s often used in machines, instruments, and industrial systems where timing
                    is crucial, like in robotics or automatic controls in factories.

                     WHAT IS A USER INTERFACE?
                 A User  Interface  (UI)  is a  part  of an  operating  system that  allows users to  interact  with  the

                 computer. It provides commands, menus, and icons that facilitate this interaction. An effective
                 interface enhances the attractiveness and user-friendliness of an operating system.
                 User interfaces can be divided into two categories based on their working environment:
                 Character User Interface (CUI)

                 A Character User Interface is a medium
                 through which users interact with a
                 computer using text-based commands.
                 Due to its reliance on commands, CUI is also

                 known as a Command Line Interface (CLI).
                 This type of interface provides a command
                 prompt where users can type commands
                 to perform specific tasks. Examples of CUI
                 include DOS and Windows Command
                 Prompt.

                                                                                Character User Interface



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