write short notes on : (a) operating system (b) Real time operating system (c) open source operating system (d) desk top (e) task bar (f) device driver Class 9th
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short note on operating system
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An operating system (OS) is system software that manages computer hardware, software resources, and provides common services for computer programs. ... Operating systems are found on many devices that contain a computer – from cellular phones and video game consoles to web servers and supercomputers
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