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A collection of instructions and data that tells a computer how to function is known as software. This is in contrast to physical hardware, which is the foundation of the system and does the real work. Computer software, comprising programs and data, is all information processed by computer systems in computer science and software engineering. Computer software contains programs, libraries, and non-executable data like online documentation or digital media. Both computer hardware and software are interdependent, and neither can be utilized effectively on its own.