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We have plenty of examples. Such as:

Windows 10.

Windows 8

Windows 7.

Windows Vista.

Windows XP.

Apple's macOS.

Linux Operating System.

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It has three main functions:

1. Manage the computer's resources, such as the central processing unit, memory, disk drives and printers.

2. Establish a user interface.

3. Execute and provide services for applications software.

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Kernel.

Process execution.

Interrupt.

Memory Management.

Multitasking.

Networking.

Security.

User interface.

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Components of an Operating System : Computer Science Assignment Help by Classof1.com

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Shell. It is the outer of an Operating System and it is responsible of interacting with the Operating System.

Kernel. It is responsible for managing and controlling computer resources such as: the processor, main memory, storage devices, input devices and communication devices.

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Is the primary software that manages all the hardware and other software on a computer. The Operating System, also known as an "OS" interfaces with the computer's hardware and provides services that applications can use.

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Computer Basics: Understanding Operating Systems