The statement which best describes operating systems is: D. Operating systems manage the computer’s random access memory (RAM).
What is an operating system?
An operating system (OS) can be defined as a system software that is pre-installed on a computing device to manage random access memory (RAM), software applications, computer hardware and user processes.
This ultimately implies that, an operating system (OS) acts as an interface (intermediary) between an end user and the hardware portion of the computer system (computer hardware) in the processing and execution of instructions, including the management of the random access memory (RAM).
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