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# What are the Shell and the Kernel? (2 of 2) ## Inside an Operating System This diagram shows how an operating system is organized. The operating system sits between the user and the hardware. #### Top Level: - **User:** interacts with the operating system by using applications - **Applications*...

# What are the Shell and the Kernel? (2 of 2) ## Inside an Operating System This diagram shows how an operating system is organized. The operating system sits between the user and the hardware. #### Top Level: - **User:** interacts with the operating system by using applications - **Applications**: provide a way for users to interact with the operating system and perform specific tasks - **User Interface Tools:** allow the user to interact with the system, these are part of the operating system #### Operating System: - **Configuration Data**: This includes the registry and configuration files that allow the operating system to run - **Shell**: Provides a command-line interface for the user - **Win32 Subsystem:** Handles the Windows 32-bit programs - **Win32 Security Subsystem:** Responsible for security - **Other Subsystems:** Handles other tasks. - **Kernel:** - **Executive Services:** manages the resources of the system - **Hardware Abstraction Layer (HAL):** manages interactions with the hardware #### Lowest Level: - **Hardware:** includes the computer’s components such as the keyboard, mouse, printer, and monitor ## Figure 5-1 Inside an operating system, different components perform various functions.