An Internet Protocol address (IP address) is a unique string of numbers separated by periods that identifies each computer using the Internet Protocol to communicate over a network. IP is working as a numerical label assigned to each device connected to a computer network that uses the Internet Protocol for communication. An IP address serves two principal functions: host or network interface identification and location addressing.
What is a 'Domain Name'?
Domain Name is the friendly naming system for giving addresses to web servers and web pages. Somewhat like international phone numbers, the domain name system gives every server a memorable and easy-to-spell address. Simultaneously, the domain names hide the really technical IP address which most viewers aren't interested in.
What is Internet?
The internet or Internet is the global system of interconnected computer networks that use the Internet protocol suite (TCP/IP) to link devices worldwide. It is a network of networks that consists of private, public, academic, business, and government networks of local to global scope, 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 and applications of the World Wide Web (WWW), electronic mail, telephony, and file sharing.
What is WWW?
The World Wide Web (abbreviated WWW or the Web) is an information space over Internet where documents and other web resources are identified by Uniform Resource Locators (URLs), interlinked by hypertext links, and can be accessed via the Internet. English scientist Tim Berners-Lee invented the World Wide Web in 1989.