December 06, 2023
ForewordHi everyone, I'm Mr. Lin, this article will introduce you to network operating systems, except for Windows, Linux and others you've never heard of! TextThe concept of a network operating system
An operating system is software that is used on a computer system to manage various hardware and software resources and provide human-computer interaction. A network operating system can implement all functions of an operating system and manage and share resources on a network. The Network Operation System (NOS) is a set of software and communication protocols that enable different computers on a network to conveniently and efficiently share network resources and provide various services required by network users.Operating system development process
Mid 1950s: The first simple batch operating system. Mid 1960s: batch processing systems enabling multiprogramming. The processor can process several programs in memory at same time, so that system's hardware resources are fully utilized. 1970s: Time-sharing operating system, representative products such as UNIX operating system. 1980s: Formation of network operating systems Computer local area networks (LANs) developed rapidly, and operating systems emerged to build network service platforms for LANs, typical systems such as NetWare. Entering 1990s: Network Operating System Excellence Microsoft released a series of server products, including Windows NT, Windows 2000 Server, and Windows Server 2003. Linux, Unix, and other operating systemsNetwork operating system functions Operating system functions typically include:
1. Shared Resource Management
The network operating system must be able to efficiently manage shared resources on network, such as shared hardware such as disk arrays, printers and plotters, and shared software such as directories, files, databases, and shared system software. and can effectively coordinate users. The use of shared resources ensures security and consistency of shared data.
A computer connected to a network as a host systema, must support network communication function, that is, implement function from data link layer of network protocol stack to application layer, in order to realize error-free data between source host and target host Transmission, network operating system, as main equipment in network applications is soul of server, supports more protocols in network communication, providing higher security and availability.
3. Network Service
The network operating system has a built-in frequently used network server to provide many efficient network services to users. Typical web services include:
4. Network Management
The network operating system supports network control protocol,
Another important task of network management is security management,
The network operating system can also monitor network performance, collect usage statistics, and provide essential information for network performance improvement, network maintenance, and accounting.
In a networked environment, different clients and hosts, regardless of which operating system is installed, can not only communicate with server, but also transparently access file system on server.
6. Transferring vacancies
That is, a job can be moved from one host computer to another host computer that has a lower workload or is suitable for processing job.Structure of network operating system
Typically, there are two modes of building a local network: peer-to-peer network and client/server network. The client/server network operating system consists of two parts: client operating system and server operating system.
Guest operating system features:
Server operating system functions:
Representative network operating systems are: