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HomeCommon ProblemWhat are the server operating systems?

Server operating systems generally refer to operating systems installed on large computers, such as Web servers, application servers, and database servers. They are the infrastructure platform of enterprise IT systems and one of the three types of operating systems divided by application fields. One (the other two are desktop operating system and embedded operating system). At the same time, server operating systems can also be installed on personal computers. Compared with the personal operating system, in a specific network, the server operating system has to undertake additional management, configuration, stability, security and other functions, and is at the heart of every network.

What are the server operating systems?

#The server operating system can realize direct control and management coordination of computer hardware and software. Any computer cannot run without an operating system, and the same goes for servers.

The operating system is mainly divided into two parts: Kernel and Shell. (Recommended learning: PHP video tutorial)

As the name suggests, the kernel mainly implements information transmission and communication between computer hardware and shell, and is the embodiment of the core technology of an operating system; The shell is mainly responsible for transmitting information exchange between the kernel and the application program, translating the internal and external commands of the kernel and the software to each other using the underlying language, and realizing each operation request. For Windows systems, the relationship between the kernel and the shell is like a foreign boss who only speaks foreign languages ​​and the position of a Chinese translator. It is a relationship between management and management; for Unix and Linux, due to the relationship between the kernel and the shell Complete separation is like the relationship between a manufacturer and an agent. Both parties cooperate for mutual benefit. The manufacturer can cancel the agent's agency at any time and find another agent, and the agent does not need this agency at the same time.

Server operating system, also known as network operating system. Compared with the personal version of the operating system, in a specific network, the server operating system has to undertake additional management, configuration, stability, security and other functions. It is at the heart of every network, and its nickname is also derived from this. Come.

Server operating systems are mainly divided into four major schools: WINDOWS, NETWARE, UNIX, and LINUX.

WINDOWS server operating system Everyone should be familiar with it. This is developed by Microsoft, the world's largest operating system developer. Its important server operating system versions, WINNT 4.0 Server, Win2000/Advanced Server, and Win2003/Advanced Server, also support the most commonly used server operating system on the market - Windows server operating system applications.

NetWare Server Operating System It may be unfamiliar to some friends in the IT circle. Due to various reasons, its market share has been very limited and it is mainly used in certain specific industries. middle. It is for this reason that when many friends were dividing operating system factions, they removed NETWARE's right to represent them. In fact, if you are an IT veteran born before the 1980s, you will be very familiar with the term NetWare, because in those days when various devices and networks were relatively backward, NetWare occupied an absolutely high market share in LAN applications; and even if At present, in some specific industries and public institutions, NetWare's excellent batch processing functions and safe and stable system performance also have a lot of room for survival. The commonly used versions of NetWare currently include Novell's 3.11, 3.12, 4.10, 5.0 and other Chinese and English versions.

Unix server operating system is jointly launched by AT&T and SCO and mainly supports large-scale file system services, data services and other applications. Since some high-end server products produced by outstanding server manufacturers only support the Unix operating system, Unix has even become synonymous with high-end operating systems in the eyes of many people. Currently, the main ones circulating on the market are SCO SVR, BSD Unix, SUN Solaris, and IBM-AIX.

Linux server operating system was developed by several foreign IT seniors based on Posix and Unix. It supports multi-users, multi-tasks, multi-threads, and multi-CPUs. Linux's open source code policy means that development and use based on its platform does not require the payment of copyright fees by any organization or individual. It has become the cornerstone of many operating system manufacturers' entrepreneurship. It has also become the first choice for purchasing server operating systems for many domestic and foreign confidential agencies.

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