System Software

  System Software An operating system is a user-interface platform that allows users to interact and run programs. How Operating System Prog...

 System Software

An operating system is a user-interface platform that allows users to interact and run programs.


  1. How Operating System Program Run

  1. . An operating system program is loaded in the computer memory which starts to run when the computer is switched on. Operating system is a medium to use the resources of computer system such as store a data, run a program, input-output system.


  1.  To run this operating system when the computer starts, a bootstrap program is stored in ROM.


  1.  This bootstrap program extracts the program in operating system and runs on the memory which keeps on running until the power is on.




Time-sharing /Multi-programming system

    a) In an operating system, one and more than one program can run. However, only one program can use the resources of CPU at a particular time, whereas other program are in stand-to access the CPU. 


    b) This condition applies for the single user in an operating system. Some systems are developed in such a way that allows more than one user to access the resources of CPU simultaneously. 



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