Operating System And The Computer System

1340 Words Nov 28th, 2014 6 Pages
Introduction:
An operating system is a vital component of the computer system. The common and simple devices like refrigerators and microwave ovens does not have an operating system. The complex systems which handle several components, functions and processes usually have an operating system. The operating system is like the brain of a human being, the brain is an essential organ in the body of human being which sends signals and helps functioning of the human body. Our intelligence, attitude, emotions and senses defines our presence, all these are possible because of our brain. In similar manner, “Operating System” (OS) is the power behind a computer system. In other words, operating system is brain of the computer and processor is the heart of the computer. A computer is the concatenation of several hardware parts. The operating system manages computer hardware resources and provides common services for computer programs and other application software.
Application programs or software usually require an operating system to function. For basic hardware functions such as input and output and memory allocation, the operating system acts as an intermediary between application software and the computer hardware, although the hardware is directly accessed and executed by application code or software directly, the hardware will frequently make a system call to an OS function or be interrupted by it. In simple terms, operating systems track the activities of hardware and…
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