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Monitor
                                           Applications
                                                                             Printer
                                             APP APP

                                             APP  APP

                                         System box

                                                           Operating
                                                            System
                                                                            Mouse

                                                     Keyboard






                 FUNCTIONS OF OPERATING SYSTEM


            The operating system performs the following functions in a device:
                Device Management: OS directly controls the operation of the input-output devices, like controlling
               the action of the printer, or the CD-ROM drive.

                Process Management: OS handles the scheduling and synchronisation of processing, suspension
               and resumption of processes. OS independently prioritises jobs for processing on a computer.

                Memory Management: OS Coordinates and controls the use of memory in a computer.
                Security Management: OS protects information and resources against destruction and unauthorised
               usage.

                File Management: It helps organise, find, and protect files on the computer.

                User Interface: Provides a way for users to interact with the computer and its programs easily.


                 TYPES OF OPERATING SYSTEM


            There are various types of operating systems. Some popular operating systems are:
                Microsoft Windows           macOS

                Linux                       Android

                DOS

            Microsoft Windows

            Windows is one of the most popular series of operating systems developed by
            Microsoft Corporation. Each version of Windows includes a Graphical User Interface
            (GUI), with a desktop that allows users to view files and folders.










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