The correct answer is D. All of above.
An operating system (OS) is a system software that manages computer hardware and software resources and provides common services for computer programs. Operating systems are found on many devices that contain a computerâfrom cellular phones and personal computers to supercomputers and Web servers.
An application system is a computer program that performs a specific task or set of tasks. Application systems are designed to meet the needs of a particular user or group of users. They can be used for a variety of purposes, such as word processing, spreadsheets, databases, and games.
System software is a type of computer program that is designed to run a computer’s hardware and application programs. System software includes the operating system, device drivers, and other programs that control the computer’s
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