When computers are connected together, either wirelessly or with cables, and they are able to communicate with each other, that’s Networking!
It’s computers speaking with each other over an interconnected network of computers. If you send an e-mail to a friend or coworker over the internet, and they respond to your e-mail, this is an example of networking. Or if you happen to have a printer connected to the office Wi-Fi, and you print a document from it wirelessly, that’s another example.
At Arista Enterprises, we network our computers so that we can interact with our servers to maintain the data held there and keep our computer system robust, among a variety of other reasons.