What are the main features of an operating system?

The main features of the operating system are: 1. Concurrency; 2. Sharing; 3. Asynchrony.

What is an operating system?

The operating system (Operating System, OS for short) is a computer program that manages computer hardware and software resources. The operating system needs to handle basic tasks such as managing and configuring memory, determining the priority of system resource supply and demand, controlling input and output devices, operating the network, and managing the file system.

The operating system also provides an operating interface for users to interact with the system.

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