What is an operating system?

What is an operating system? Here are some definitions.

Noun (software) Software that controls the allocation and usage of hardware resources such as memory, CPU time, disk space, and input and output devices. Find more words! 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I have one or two criticisms of this operating system, because errors of the kind that I made should be recoverable but are not. And it assumes that applications are well-behaved enough to use the protection facilities in the operating system. It allows these applications to run, without recompilation, under a 64-bit operating system in long mode. This will enable rival vendors to develop products that can compete on a level playing field in the work group server operating system market. The faster chip also requires that the operating system and applications that run on top of it be recompiled for 64-bit processing. See Also What is another word for operating system? Sentences with the word operating system Words that rhyme with operating system What is the plural of operating system? Translations for operating system Nearby Definitions operating room tables operating room table operating rooms operating-room operating room operating losses operating-system operating systems operating table operating tables operating theatre operating-theatre