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This article mainly introduces what are the five major management functions of the operating system in the computer. What is introduced in this article is very detailed and has a certain reference value. Interested friends must read it!

The five major management functions of the operating system are: 1, device management function, mainly responsible for data exchange between kernel and peripheral devices; 2, job management function, mainly responsible for computer interaction, graphical interface or system task management; 3, file management function; 4, process management function; 5, storage management function, data storage mode and organizational structure.

Operating system (operation system, referred to as OS) is a computer program that manages computer hardware and software resources. The operating system needs to deal with basic tasks such as managing and configuring memory, determining the priority of supply and demand of system resources, controlling input and output devices, operating networks and managing file systems. The operating system also provides an interface that allows users to interact with the system.

Generally speaking, the operating system can be divided into five major management functions:

Device management: mainly responsible for the data exchange between the kernel and peripheral devices, the essence is the management of hardware devices, including the allocation, initialization, maintenance and recovery of input and output devices. For example, manage audio input and output.

Job management: this part of the function is mainly responsible for computer interaction, graphical interface or system task management.

File management: this part of the function involves the logical and physical organization of files, directory structure and management. From the point of view of the operating system, the file system allocates, maintains and reclaims the storage space of the file memory, and is responsible for file indexing, sharing and permission protection. From the user's point of view, the file system is accessed according to the file directory and file name.

Process management: the only sign indicating the existence of a process is the pcb (process control block), which is responsible for maintaining the information and state of the process. In essence, process management is that the system adopts some process scheduling algorithms to make the processing reasonably allocated to each task.

Storage management: the storage and organizational structure of data.

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