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Answer:

Memory Management.

Loading and Execution.

Data security.

Disk Management.

Process Management.

The basic characteristics of operating systems are Work Management, Memory Management, Input/output control, Process Management, and Resource Management.

What is an Operating System?

Simply put, it is a computer program that helps computer operators effectively and efficiently use a computer without the need for coding or coding experience.

In summary, before the advent of operating systems, only programmers could use a computer,  operating systems made it possible for everyone/anyone to use a computer.

Learn more about  operating systems here:

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