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opperating systems

1. 1. An operating system is the most important software that runs on a computer. It manages the computer's memory, processes, and all of its software and hardware. It also allows you to communicate with the computer without knowing how to speak the computer's "language." Without an operating system, a computer is useless.

2. 2.An operating system (OS) is software that manages computer hardware and software resources and provides common services for computer programs. The operating system is an essential component of the system software in a computer system. Application programs usually require an operating system to function.

3. 3. The usage share of operating systems is the percentage market share of the operating systems used in computers. Different categories of computers use a wide variety of operating systems, so the total usage share varies enormously from one category to another. In certain categories, one family of operating systems dominates, for example, most desktop and laptop computers use Microsoft Windows, while most supercomputers use Linux. In other categories, such as smartphones and servers, there is more diversity. Data about operating system share is difficult to obtain, since in most categories there are few reliable primary sources or agreed methodologies for its collection.