What are the five major management functions of the operating system?

The five major management functions of the operating system are process management, file management, memory management, device management and user interface. Detailed introduction: 1. A process is an instance of a running program. The process management function is responsible for controlling and coordinating resource allocation and scheduling between different processes, including process creation, termination, suspension, recovery and switching operations; 2. File The management function is responsible for managing the storage, organization and access of files, including file creation, opening, closing, reading, writing and deletion operations; 3. The memory management function is responsible for allocating the computer's memory space, etc.

# Operating system for this tutorial: Windows 10 system, Dell G3 computer.

The operating system is one of the most important software in a computer system. It is responsible for managing computer hardware resources and providing a reliable and efficient execution environment for applications. The operating system achieves this goal through five major management functions, including process management, file management, memory management, device management and user interface. Each feature is described in detail below.

Process management:

A process refers to an instance of a running program. The process management function is responsible for controlling and coordinating resource allocation and scheduling between different processes. It includes operations such as process creation, termination, suspension, recovery and switching. Through process management, the operating system can effectively utilize processor resources and improve system concurrency and throughput.

File management:

The file management function is responsible for managing the storage, organization and access of files. It includes operations such as file creation, opening, closing, reading, writing, and deletion. The operating system provides a unified interface through file management, allowing applications to easily access files stored on different devices, while also enabling file sharing and protection.

Memory management:

The memory management function is responsible for allocating and recycling the computer's memory space. It includes operations such as memory partitioning, allocation, recycling and protection. Through memory management, the operating system allows applications to run in the virtual address space, achieving isolation and protection between processes. It can also provide functions such as virtual memory and page replacement, expanding the available memory space.

Device management:

The device management function is responsible for managing and controlling the computer's external devices. It includes operations such as device allocation, scheduling, interrupt handling, and driver management. Through device management, the operating system allows applications to easily use various external devices, such as printers, hard disks, keyboards, etc., and provides a unified interface to access these devices.

User interface:

The user interface is the interactive interface between the operating system and the user. It can be a command line interface, a graphical user interface, or some other form of interface. The user interface function is responsible for receiving input from the user and displaying output from the operating system. The operating system allows users to easily interact with the computer and perform various operations through the user interface, such as starting programs, managing files, and setting system parameters.

In summary, the five major management functions of the operating system are process management, file management, memory management, device management and user interface. Together they form the core functions of the operating system, responsible for managing various resources in the computer system and providing a reliable, efficient and friendly execution environment for applications.

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