Computer Network Terms

Node
A node is a connection point, either a redistribution point or an end point for data transmissions. In general, a node has programmed or engineered capability to recognize and process or forward transmissions to other nodes.

Client
A client is an application that runs on a personal computer or workstation and relies on a server to perform some operations. For example, an e-mail client is an application that enables you to send and receive e-mail.

Server
A server is an application running on a computer that delivers a service. For example, a web server will deliver web pages when requested by a browser (called client in this context).

Hub
It is a central connection for all the computers in a network, which is usually Ethernet-based. Information sent to the hub can flow to any other computer on the network. If you need to connect more than two computers together, a hub will allow you to do so.

Host Computer
Main or controlling computer connected to other computers or terminals to which it provides data or computing services via a network.

Network Interface Cards
A network interface card (NIC) is a computer circuit board or card that is installed in a computer so that it can be connected to a network.

Network Administrator
Network administrator is a modern profession responsible for the maintenance of computer hardware and software that comprises a computer network. This normally includes the deployment, configuration, maintenance and monitoring of active network equipment.

Network Operating System (NOS)
NOS is the software that allows multiple computers to communicate, share files and hardware devices with one another. Some examples of network operating systems include Novell NetWare, Microsoft Windows NT, Microsoft Windows 2000 etc.

Distributed processing
Distributed processing is used to describe the distribution of multiple computers throughout an organization in contrast to a centralized system.

Network manager
NetworkManager is a software utility aimed at simplifying the use of computer networks on Linux and other Unix-like operating systems.