What are the main functions of an operating system

The main functions of the operating system are: 1. Process management; 2. Storage management; 3. Device management; 4. File management; 5. Job management. The main task of process management is process scheduling. In the case of a single user and a single task, the processor is exclusively occupied by one task of one user.

#The operating environment of this article: Windows 7 system, Dell G3 computer.

The operating system mainly includes the following functions:

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1. Process management, its main work is Process scheduling, in the case of single user and single task, the processor is only exclusive to one task of one user, and the process management work is very simple. However, in the case of multi-programming or multi-user, when organizing multiple jobs or tasks, it is necessary to solve the problems of processor scheduling, allocation and recycling.

2. Storage management is divided into several functions: storage allocation, storage sharing, storage protection, and storage expansion.

3. Device management has the following functions: device allocation, device transmission control, and device independence.

4. File management: file storage space management, directory management, file operation management, and file protection.

5. Job management is responsible for processing any requirements submitted by users.

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