Information technology networks interconnect computers to share files, data and other resources. They use a comprehensive system of rules called communication protocols that transmit information using both wireless and physical technologies. Colleges offer degree programs in information technology that teach students about these networks.
A network topology describes how the network is created to connect devices and systems. There are a variety of topologies such as mesh, bus, and ring as well as fully connected (or completed), star, hierarchical, and tree. These kinds of structures have distinct advantages in terms of disadvantages, advantages, and costs to businesses. A topology could be logical or physical, and could be public or private one.
In a computer networking, the central component (such as a hub, switch, or router) connects to other computers to send or receive messages. The central component, also referred to as a server, is the node. This is among the most common network configurations, but it has its own drawbacks like the possibility of a single cable failing, which could stop communication.
A network server is a computer that stores software and files that are shared by multiple users on the network. Servers typically operate on a client-server model in which the clients are the desktop applications of users and the servers are able to process data in real time. As businesses require more accessibility of their crucial data IT staff could be required to design a high-availability cluster that processes data in a redundant fashion and is resilient enough that it will continue to function even if one component fails.