Overview of Operating Systems

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Introduction Operating system is a platform that is found between the hardware and the user that is responsible for management and sharing of resources of the computers. Operating system has a basic function definition; it is a program making the power of the computer to be available to users by use of hardware control. Computers cannot work if there is no operating system installed in them since it hosts many applications running inside the computer while handling operations of the computer hardware. Operating systems are of many different types having various functions. This paper therefore, tends to analyze the functions of operating system. Functions of Operating System Process Management: Processes are applications running in state. The operating system ensures that each process is fairly treated in terms of processor time allocated in an environment which is multitasking. The operating system has the capability of doing multiple processes. The allocation of Central Processing Unit (CPU) is normally being affected because some operating system always allows processes to be assigned apriority. Operating systems that are more interactive sometimes employ feedback in which tasks that the user is working upon receives a higher priority. In most cases, there is background process that runs when there is no other process waiting for CPU (Stroman, Wilson, & Wauson, 2004). Memory management: When the computer memory is managed by the operating system, some tasks are
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