Shulou(Shulou.com)05/31 Report--

Hello everyone, Lin Fei to answer the above questions, the function of the operating system means that many people do not know the function of the operating system, now let's take a look at it!

1. Now that we have entered the information age, almost everyone has some related equipment. Although the function of the computer is to surf the Internet, watch videos, write reports and so on. This is not much, in fact, these steps involve very complex procedures. For example, connect to the network, update in real time, store a large amount of content, and so on. So the running process of the computer is not as simple as we think, it is all because of the operating system of the computer. Next, Benshaw will introduce the computer's operating system into large furniture.

2. Introduction of operating system

3. The operating system (OS) is a computer program that manages and controls computer hardware and software resources. It is the most basic system software that runs directly on "bare metal". Any other software must be supported by the operating system to run.

4. The main functions of the operating system are resource management, program control and human-computer interaction. Computer resources can be divided into two categories: equipment resources and information resources. Resources refer to the hardware devices that make up the computer, such as CPU, main memory, disk memory, printer, tape memory, monitor, keyboard input device, mouse and so on. Information refers to all kinds of data stored in the computer, such as files, libraries, knowledge bases, system software and application software.

5. The types, functions and functions of the operating system

6. Operating systems installed on various devices can range from simple to complex, including smart card operating system, real-time operating system, sensor node operating system, embedded operating system, personal computer operating system, multiprocessor operating system, network operating system and mainframe operating system.

7. Simple operating system. It is the early operating system of the computer, such as the disk operating system DOS/360 of IBM and the operating system CP/M of microcomputer. The functions of this operating system mainly include executing operation commands, file services, supporting high-level programming language compilers, controlling external devices, and so on.

8. Time-sharing system. It supports multiple users of different terminals to use the same computer at the same time, independent of each other, and the user feels as if he is using the same computer.

9. Real-time operating system. It is an operating system configured for real-time computer systems. Its main feature is that when allocating and scheduling resources, real-time is considered first, and then efficiency is considered. In addition, the real-time operating system should have strong fault tolerance.

10. Network operating system. It is an operating system configured for computer networks. With its support, computers in the network can communicate with each other and share resources. Its main feature is to combine with the hardware of the network to complete the communication task of the network.

11. Distributed operating system. It is an operating system configured for distributed computing systems. It is very different from other operating systems in resource management, communication control and operating system structure. Because the resources of the distributed computer system are distributed on different computers in the system, the operating system can not just wait for the resources to be allocated directly like the general operating system, but search on each computer in the system. You can't allocate it until you find the resources you need. For some resources, such as files with multiple copies, consistency must also be considered. Consistency means that the data read by several users to the same file at the same time is consistent. In order to ensure consistency, the operating system must control the reading, writing and operation of the file, so that multiple users can read a file at the same time, and at most one user can modify the file at any time. The communication function of distributed operating system is similar to that of network operating system. Because the distributed computer system is not as widely distributed as the network, and the distributed operating system also supports parallel processing, the communication mechanism it provides is different from that provided by the network operating system, and requires higher communication speed. The structure of distributed operating system is also different from other operating systems. It is distributed on all computers in the system, can deal with the various needs of users in parallel, and has strong fault tolerance.

12. Intelligent operating system. The main functions of intelligent operating system are resource management, program control and human-computer interaction. Computer resources can be divided into two categories: equipment resources and information resources. Resources refer to the hardware devices that make up the computer, such as CPU, main memory, disk memory, printer, tape memory, monitor, keyboard input device, mouse and so on.

We spend a lot of time using computers, but most of us may not know why computers are so powerful. After reading the above introduction to the computer operating system, I think everyone already knows the function and function of the computer operating system. For our users, the computer operating system acts as a bridge between our users and the computer's hardware, allowing us to control our computers through commands.

At the end of this article, I hope it will be helpful to you.

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