The Internet has become a necessity in today’s world. Imagine any scenario and you will realize that internet is used in every aspect of life now. Internet is a global networking service provider medium that connects computer systems with the world. It also provides organizational computer facilities around the world. Internet is a vast resource of information and services. It uses the Internet protocol suite Transmission Control Protocol (TCP)/ Internet Protocol Address (IP) to communicate between networks and devices. TCP/IP consists of a set of standardized rules that allow computers to communicate. It serves as a backbone to interconnection and networking technologies. Internet is a network of networks and has different types of internet. It consists of public, private, academic, business, and government networks of local to global scope, linked by a comprehensive arrangement of electronic, wireless, and optical networking technologies. To connect with the internet one should get connected with an internet service provider (ISP).