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Operating Systems Concepts

Date: 05/13/2015

Operating system definition The operating system a series of important program runs on the computer that enables the computer turn on and handles all kinds of tasks. Every program running on the computer must depend on the operating system. Operating system control the most basic function on the computer, such as receiving input from the devices (keyboard, mouse, scanner), processing data (calculate, save the data), sending output to the display screen, creating files, directories, and keeping track of files and directories on the disk. Operating system function There are a lot of functions on an operating system. Even there is one function stop working, our computer system will crash. The basic functions of an operating system including: Booting the computer, Performs basic input output function, managing the various peripheral devices (mouse, keyboard, and printer), provides a user interface: graphical user interface, Handles system resources such as computer's memory and sharing of the central processing unit time by various applications or peripheral devices, Provides file management which refers to the way that the operating system manipulates, stores, retrieves and saves data.

Booting the computer Booting means the process of starting and restarting the computer. When you turn on a computer after it has been turned off completely, that calls a cold boot. A warm boot means using the process on the operating system to restarting the computer.
Performs basic computer input and output function The most basic performance of the operating system is input and output function. This function coordinates the various peripheral devices such as the mouse, keyboard and printers. Our computer can figure out the function of the devices automatically which called plug

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