What is a Internet ?

Internet is a global system of interconnected computer networks that use the standard internet protocol (TCP/IP) to serve billions of 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 a vast range of information resources and services, such as the inter-linked hypertext documents ,image , Videos and other multimedia  of the world wide web  (WWW) and the infrastructure to support Electronic mail .