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This article will explain in detail what are the five major management functions of the operating system. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.

The management functions of the operating system are: 1, job management, including task and interface management, 2, file management, also known as information management, 3, storage management, refers to the management of main memory, 4, device management, refers to the management of hardware equipment; 5, process management, refers to the system to adopt certain process scheduling algorithms to make processing reasonably assigned to each task.

Five management functions of the operating system:

(1) Job management: including task, interface management, human-computer interaction, graphical interface, voice control and virtual reality, etc.

(2) document management: also known as information management

(3) Storage management: in essence, it is the management of storage "space", mainly refers to the management of main memory.

(4) equipment management: essentially the management of hardware equipment, including the allocation, startup, completion and recovery of input and output devices.

(5) process management: the only sign indicating the existence of a process is pcb (process control block), which is responsible for maintaining the information and status 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.

The characteristics of the five types of operating systems are:

(1) the characteristics of batch operating system are as follows: a. The user uses the computer offline. After the user submits the job, he or she no longer deals with the computer until the result is obtained. The job can be submitted directly to the management operator of the computing center, or through a remote communication line. The submitted job is accepted as a backup job by the external storage of the system. b. Batch processing. The operator processes the jobs submitted by the user in batches. The jobs in each batch will be automatically scheduled and executed by the operating system or supervisor. c. Run multiple programs. According to the scheduling principle of multi-programming, multiple jobs are selected from a batch of backup jobs into memory and organized to run, which becomes multi-channel batch processing.

(2) the characteristics of time-sharing operating system are: a. Interactivity: first of all, the user can control the program when it is running dynamically. Secondly, it is convenient for users to submit jobs on the computer. Third, the time-sharing system also provides convenience for cooperation between users. b. Multi-user simultaneity: multiple users on their own terminals at the same time, share CPU and other resources, give full play to the efficiency of the system. c. Independence: objectively, users do not feel that anyone else is using the computer, just as they own the computer.

(3) the characteristics of real-time operating system are: a. Real-time clock management (timing and delay processing). b. Continuous man-machine conversation is often necessary for real-time control. c. Overload protection measures are required. For example, for short-term overload, the input tasks are queued in the buffer according to a certain strategy, waiting for scheduling; for persistent overload, the input of some tasks may be rejected; in the real-time control system, some tasks are dealt with in a timely manner. abandon some tasks or reduce the frequency of service for some tasks. d. Redundancy measures should be taken for high reliability and security. Work in front and background of dual-computer system, including necessary security measures, etc.

(4) the characteristics of network operating system are: a. Computer network is a group of interconnected computer systems. b. These computers are autonomous, each computer has its own operating system, works independently, and they work together under the control of network protocols. c. System interconnection should be realized through communication facilities (hardware and software). d. The system implements information exchange, resource sharing, interoperation and collaborative processing through communication facilities to achieve a variety of application requirements.

(5) the characteristics of distributed operating system are: a. The development of computer network follows the protocol, but there is no standard protocol for all kinds of distributed systems. Of course, the computer network can also be regarded as a distributed system. b. Distributed system requires a unified operating system to achieve the unity of system operation. c. The distributed operating system is transparent to users. For computer networks, however, if a user on one computer wants to use resources on another computer, he must specify which computer it is. d. The foundation of distributed system is network. Distributed system is not only a loosely coupled system in physics, but also a logically tightly coupled system. e. The distributed system is still in the research stage.

This is the end of the article on "what are the five major management functions of the operating system". I hope the above content can be of some help to you, so that you can learn more knowledge. If you think the article is good, please share it for more people to see.

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