The Internet is a global network of computers that allows individual and business computer users around the world to share information and other resources and to conduct business transactions.
When a user connects to the Internet to access information and services, he or she is considered to be online. All computers and mobile devices share a common of communicating known as a protocol. A protocol is a standard or set of rules that computer network devices follow when transmitting and receiving data.
Every computer connected to the Internet use the Transmission Control Protocol/ Internet Protocol (TCP/IP). TCP/IP makes it possible for different types of computers using a variety of operating systems to communicate.