Network operating systems, their characteristics and selection criteria
In the case when users are faced withtasks of optimal separation of network resources (for example - disk space), they can use network operating systems. Such systems provide an opportunity to transfer many administration functions to the network space. Using network resources that significantly exceed the user's resources, the administrator is able to professionally identify shared resources and by assigning unique passwords to each of them, making them stand-alone and accessible to each individual user or group of users. This division also defines the classification of network OSs for server and OS, intended for users.
Today, there are developed and widely usedspecial network operating systems, but which have the characteristics of the familiar to us, operating systems. Developed special network OS, which has the parameters of conventional, such, for example, is the operating system windows xp. It should also be noted that to date, almost all conventional systems have built-in options and functions of network systems.
Therefore, the network OS is such an operating system, the built-in optional features of which allow efficient work in the network space. These properties include:
- Support for a wide range of network equipment;
- Ability to use network protocols;
- ensuring the use and support of network routing protocols;
- Traffic filtering;
- providing uninterrupted access to remote network resources (disks and printers);
- implementation of the remote access capability for solving network tasks.
The most common network operating systems are: Novell NetWare, various versions of the GNU / Linux OS, ZyNOS, and, of course, the most common Microsoft Windows (95, NT, XP, Vista, 7).
Modern network operating systems and theirdiversity is due to the fact that today in the world there are many types of computers. That is why systems for mobile devices, home workstations, server systems, corporate operating systems are developed and distributed. The very classification emphasizes the variety of those performance characteristics and options that differentiate the resources considered. This diversity, positive on the one hand (provides user choice, OS for its financial capabilities and in accordance with the tasks at hand), creates certain inconveniences, on the other. This inconvenience is the need to ensure compatibility of the OS, especially for corporate units operating within the same network policy. A very important property that characterizes the parameters of a particular network OS is the available boot of the operating system and the ability to update it operatively.
The most widely used such operating systems in operationvarious enterprises and institutions, where processing of large data sets is required. The question naturally arises as to how correctly to choose network operating systems for effective business dealing, without spending superfluous money resources. It seems that the main criterion in choosing the appropriate OS should be the following. If you need a resource of the scale of a large enterprise or corporation, then pay attention to such a parameter as scalability, i.e. stability of operation in various network conditions. Also important is a high degree of compatibility - the ability to effectively use the operational update mode. In addition, such OS, it is desirable, should ensure the integration of heterogeneous resources - servers and computers.
Of course, it is difficult to find and pick upThe operating system completely satisfies the requirements of a specific user. Therefore, their choice is desirable to carry out taking into account the critical evaluation of real problems and the specific situation that this software will solve.