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A computer is controlled by systems software. Operating systems provide this control, while utilities help to maintain the system. Note: this is different from "applications software" like word processing software (e.g Microsoft Word)
Systems software is software that governs the computer system. It:
There are two kinds of systems software to consider:
https://en.wikipedia.org/wiki/Software
https://en.wikipedia.org/wiki/System_software
https://www.bbc.co.uk/bitesize/guides/zmqw7p3/revision/1
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