�Topic : Network operating systems.�
Plan :
Network operating system structure�
A network operating system is the foundation of any computing network . Each computer in a network is to some extent autonomous, therefore, a network operating system in a broad sense is understood as a set of operating systems of individual computers that communicate with each other to exchange information and distribute resources based on a single set of rules - protocols. In a narrow sense , a network operating system is an operating system of an individual computer that provides it with the ability to work
Structure of a network operating system.
network operating system of a single machine can be divided into several parts.
Remote resource and application permission request tools and their use
Information exchange occurs in
Means of providing personal resources and services for public use ;
Tools for managing local computer resources ;
Operating system in computer communication the interaction of components.
Network OS construction options
The first Network OSs consisted of a collection of current local OSs and their built-in Network Shell. At the same time, the local OS was equipped with the minimum Network functions necessary for the Network Shell to perform basic Network functions. An example of this approach is the use of the MS DOS operating system on each computer (starting from the third version, it had built-in functions such as file and record locking, which provided joint access to files). The principles of building Network OSs in the form of a Network Shell on top of the local OS are used in modern OSs, such as Lantastic or Personal Ware.
However, it seems more effective to develop operating systems designed from the very beginning to work on the Network. The Network functions of such OSs are deeply embedded in their main system modules, which ensures their logical completeness, ease of use and modification, as well as high performance. An example of such an OS is the Windows NT system from Microsoft, which, due to the built-in Network tools, provides much higher performance in terms of data processing and security than the LAN Manager OS developed by this company (together with IBM).