What is a Node?
Node (英：node) refers to the “point” part in a diagram composed of points and lines.
Brief Explanation
A node is the part of a diagram or network that is represented as a “point.” For example, in a network diagram, nodes can represent devices like computers or routers.
Detailed Explanation
- Example of a Diagram:
- Imagine a structure where A branches out to B1 and B2, B1 further branches to C11 and C12, and B2 extends to C21.
- In this simplified diagram using only points and lines, the points (A, B1, B2, C11, C12, C21) are the nodes.
- Network Example:
- In a network diagram showing [Computer]—[Router]—[Server], each component (Computer, Router, Server) is a node.
- Edges:
- The “lines” connecting the nodes in the diagram are called edges. Nodes and edges together form the structure of the diagram.
Summary
A node is a point in a diagram or network. It is the element that is connected by edges (lines) to other nodes.