What is a node object?

A node object is represented by a single node in a tree. It can be an element node, attribute node, text node, or any type that is described in section "node type". All objects can inherit properties and methods for dealing with parent and child nodes, but not all of the objects have parent or child nodes.

What is a node on a plant?

You can also find a node on a plant: it’s the swelling on the stem marking the spot where leaves emerge. Computer techs know that a node can also be a piece of equipment — like your cable modem — in a computer network. In a sense, that kind of node is also a connecting point — like the traffic intersection.

What are Internet nodes?

The concept of nodes works on several levels, but the big-picture view defines nodes as the major centers through which internet traffic is typically routed. This usage is somewhat confusing, as these same internet nodes are also referred to as internet hubs.