What the internet is?
How it works?
The Internet is a global system of interconnected computer networks that use the standard internet protocol suite (TCP/IP) to serve several billion users worldwide. It is a network of networks that consists of millions of private, public, academic, business, and government networks, of local to global scope, that are linked by a broad array of electronic, wireless, and optical networking technologies. The Internet carries an extensive range of information resources and services, such as the inter-linked hypertext documents of the world wide web (WWW), the infrastructure to support email, and peer-to-peer networks.
A video on how the internet works
How does the internet work? - James May's Q&A (Ep 19) - Head Squeeze