Why should computer communication employ protocol? Explain

Can different classes of computer networks (say, by their size) be distinguished?

What distinguishes computer and phone networks from others, and vice versa?

Can we say that there is a significant difference between the Internet and traditional telephone networks?

How should we classify computer networks?

How are the various school computer networks utilised? What sets it apart from other similar varieties?

What, precisely, does one mean when they refer to a "computer network"? What are some of the many components that come together to form a network? Please provide an explanation, using no more than a few phrases, as to the motivations for the creation of a computer network.

Why is the Internet sometimes described as a "Network of Networks"?

How significant is the role of humans in computer networks?

Is it possible to define "Networking?"