How a device operating system works in relation to networking?

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A network operating system (NOS) is an operating system that manages network resources: essentially, an operating system that includes special functions for connecting computers and devices into a local area network (LAN). The NOS manages multiple requests (inputs) concurrently and provides the security necessary in a multiuser environment. It may be a completely self-contained operating system, such as NetWare, Unix, Windows 2000, or Mac OS X, or it may require an existing operating system in order to function (e.g., Windows 3.11 for Workgroups requires DOS; LAN Server requires OS/2; LANtastic requires DOS). In addition to file and print services, a NOS may also offer directory services and a messaging system (email), as well as network management and multiprotocol routing capabilities.

You can find more information at:

http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci214124,00.html

You can also find more information at the following companies' web pages:

http://www.microsoft.com/ http://www.novell.com/products/netware/ http://www.apple.com/macosx/server/ http://www.vertical.com/

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Last modified on 2018-01-18 13:09:55.

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An operating system (OS) is basically a collection of software that manages computer hardware resources and provides common services for computer programs. Operating system is a crucial component of the system software in a computer system. 

Network Operating System is one of the important type of operating system.

Network Operating System runs on a server and gives the server the capability to manage data, users, groups, security, applications, and other networking functions. The basic purpose of the network operating system is to allow shared file and printer access among multiple computers in a network, typically a local area network (LAN), a private network or to other networks.

Some examples of network operating systems include Microsoft Windows Server 2003, Microsoft Windows Server 2008, UNIX, Linux, Mac OS X, Novell NetWare, and BSD.

Advantages

• Centralized servers are highly stable.

• Security is server managed.

• Upgradation of new technologies and hardware can be easily integrated into the system.

• It is possible to remote access to servers from different locations and types of systems.

Disadvantages

• High cost of buying and running a server.

• Dependency on a central location for most operations.

• Regular maintenance and updates are required.

Updated on 17-Oct-2019 11:16:14

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In this section we will understand the concept of network operating system in detail.

What do you mean by network operating system?

An Operating system, which includes software and associated protocols to communicate with other autonomous computers via a network conveniently and cost-effectively, is called Network Operating System. It allows devices like a disk, printers, etc., shared between computers. The individual machines that are part of the Network have their operating system, and the Network Operating System resides on the top of the individual machines. Since individual machines have their Operating System to access resources from other computers, they have to log into another machine using the correct password. This feature also results in no process migration, and processes running at different machines cannot communicate. The transmission control protocol is the common network protocol.

The various Features of the Network Operating System are given below.

• Network Operating System presents a few protection functions inclusive of login regulations via way of means of
• This kind of Operating System presents numerous net offerings and backup offerings.
• It presents numerous functions inclusive of guide for processors, computerized hardware detection, and guide multiprocessing of numerous
• It helps diverse auditing equipment with graphical interfaces.

Types of Network Operating System

Network operating systems can be specialized serve as:

• Peer To Peer System
• Client-Server System

Peer To Peer Network Operating System

Peer To Peer networks are the network resources in which each system has the same capabilities and responsibilities, i.e., none of the systems in this architecture is superior to the others in terms of functionality.

There is no master-slave relationship among the systems, i.e., every node is equal in a Peer Peer Network Operating System. All the nodes at the Network have an equal relationship with others and have a similar type of software that helps the sharing of resources.

A Peer to Peer Network Operating System allows two or more computers to share their resources, along with printers, scanners, CD-ROM, etc., to be accessible from each computer. These networks are best suitable for smaller environments with 25 or fewer workstations.

To establish a Peer Peer Network, you need network adapter cards, properly installed network cabling to connect them, and a network hub or switch to interconnect the computers.

Peer to Peer Networks is organized, simply a group of computers that can share resources. Each computer in a workstation keeps track of its user accounts and security settings, so no single computer is in charge of the workgroup. Workgroups have little security, and there is no central login process. Any user can use any shared resources once he logs into a peer on the Network. As there is no central security, sharing resources can be controlled by a password, or the user may stop the accessibility of certain files or folders by making them not shared.

Advantages of Peer To Peer Network Operating System

• This type of system is less expensive to set up and maintain.
• In this, dedicated hardware is not required.
• It does not require a dedicated network administrator to set up some network policies.
• It is very easy to set up as a simple cabling scheme is used, usually a twisted pair cable.

Disadvantages of Peer To Peer Network Operating System

• Peer to Peer networks are usually less secure because they commonly use share-level security.
• This failure of any node in a system affects the whole system.
• Its performance degrades as the Network grows.
• Peer to Peer networks cannot differentiate among network users who are accessing a resource.
• In Peer to Peer Network, each shared resource you wish to control must have its password. These multiple passwords may be difficult to remember.
• Lack of central control over the Network.

Client-Server Network Operating System

In Client-Server systems, there are two broad categories of systems:

• The server is called the backend.
• A client called as frontend.

Client-Server Network Operating System is a server-based Network in which storage and processing workload is shared among clients and servers.

The client requests offerings which include printing and document storage, and servers satisfy their requests. Normally all community offerings like digital mail, printing are routed through the server.

Server computers systems are commonly greater effective than client computer systems. This association calls for software programs for the customers and servers. The software program walking at the server is known as the Network Operating System, which offers a community of surroundings for server and client.

Client-Server Network was developed to deal with the environment when many PC printers and servers are connected via a network. The fundamental concept changed to outline a specialized server with unique functionality.

For Example: Number of customers are related or connected to a file server that stores the files of client machines. Another system might be special as a Print Server to satisfy the printing request with the aid of using the diverse customers. Web servers or email servers are different specialized servers that may be utilized in a Client-Server system.

A common application of Client-Server application involves a database that many computers on a network can access. The database is stored on the server, and the database queries are sent from clients and processed by the server. The result of queries is then sent across the Network back to the clients. One server may provide too many clients at a time.

Advantages of Client-Server Network Operating System

• This Network is more secure than the Peer Peer Network system due to centralized data security.
• Network traffic reduces due to the division of work among clients and the server.
• The area covered is quite large, so it is valuable to large and modern organizations because it distributes storage and processing.
• The server can be accessed remotely and across multiple platforms in the Client-Server Network system.

Disadvantages of Client-Server Network Operating Systems

• In Client-Server Networks, security and performance are important issues. So trained network administrators are required for network administration.
• Implementing the Client-Server Network can be a costly issue depending upon the security, resources, and connectivity.

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