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Operating system An Operating system is the most important piece of software running on a computer. Many people have used a computer, all have used Microsoft word or excel for spreadsheets. These are application program. The application program interacts with the Operating system, and now the Operating system is a program that is run when ether a computer is switched on. We need an Operating system installed on our computers or else it will become very inhospitable. We all use digital computers and everything is represented by numbers. The Operating system provides help to do productive work such as writing letters or surfing the web. It an provide the techniques to overlap input and output with processing, while a program is receiving an input from the keyboard, another can e writing to a file whilst another processes. This means the efficiency of the computer is improved. An Operating system is software which makes...

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