The Internet is a global system of interconnected computer networks that use the standard Internet protocol suite, a set of communications protocols, to serve billions of users worldwide. The internet has reshaped and redefined most traditional communications media including telephone, music, film, and television. This has given birth to new services. Newspaper, book and other print publishing are adapting to Web site technology, or are reshaped into blogging and web feeds.
The Internet has enabled or accelerated new forms of human interactions through instant messaging, Internet forums, and social networking. Online shopping has boomed both for major retail outlets and small artisans and traders. Business-to-business and financial services on the Internet affect supply chains across entire industries.
The origins of the Internet reach back to research of the 1960s, commissioned by the United States government in collaboration with private commercial interests to build robust, fault-tolerant, and distributed computer networks. The commercialization of what was by the 1990s an international network resulted in its popularization and incorporation into virtually every aspect of modern human life. As of 2011, more than 2.1 billion people — nearly a third of Earth's population — use the services of the Internet