Question: Operating system is

Answer:

An operating system (OS) is a software that manages and controls the hardware and software resources of a computer system. It provides an interface between the user and the computer hardware, allowing the user to interact with the computer and run applications.

The operating system performs a wide range of tasks, including:

1. Resource management: The operating system manages the computer's hardware resources, such as the CPU, memory, and storage devices, allocating them to running applications and managing their usage.
2. Process management: The operating system manages the processes running on the computer, ensuring that they have access to the resources they need and that they do not interfere with each other.
3. Memory management: The operating system manages the computer's memory, allocating it to running processes and freeing it up when it is no longer needed.
4. File management: The operating system manages the computer's file system, allowing users to create, edit, and delete files and directories.
5. Security: The operating system provides a variety of security features, such as user authentication and access control, to protect the computer and its data from unauthorized access.