NODE : node is any piece of hardware on the system that can be addressed by a message from another node, i.e., a computer, fax, modem, or CD-ROM drive.
HUB : A hub is also known as concentrator in which all nodes are connected whose purpose is to simplify the wiring of the nodes to each other and to route signals between the nodes.
BACKBONE : A Backbone is a high capacity link to which many nodes or hubs can connect and it’s designed to carry lots of traffic.
SERVER : A server is any network computer that can be accessed by others to receive files, send print jobs, or connect to the Internet. The computers that are connected to the server are called clients because they depend on the server for programs, data, or connections to other computers and devices.
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