What Is a Node?
A node is a point of intersection or connection between two or more lines in a network. In computer science, nodes are the individual components that make up a larger system such as networks, databases and software applications. Nodes can be physical devices like computers, routers and switches; they can also be virtual entities such as web servers, application servers and cloud services. Each node has its own unique address which allows it to communicate with other nodes on the same network.
Nodes are essential for communication within networks because they provide pathways for data to travel from one device to another. They act as gateways between different parts of the network by routing information through them using protocols like TCP/IP (Transmission Control Protocol/Internet Protocol). Additionally, nodes allow users to access resources located on remote systems without having direct access to those systems themselves. This makes them an important part of distributed computing architectures where multiple machines work together in order to complete tasks efficiently and securely.