A computer network is a collection of computers or devices connected to share resources. Any device which can share or receive the data is called a Node. Through which the information or data propagate is known as channels, It can be guided or unguided.
In this Computer network tutorial, you’ll learn basic to advanced concepts like the Basics of computer networks, data link layer, network layer, network security and cryptography, compression techniques, etc.
A link is a connection between two or more computers. Link can be wired or wireless between two nodes. A node is refer to any device in a network like computers, laptops, printers, servers, modems, etc.
Network topology is the physical design of the network, It represents the connectivity between the devices, cables, computers, etc.