The Internet carries a vast 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.
The origins of the Internet date back to research commissioned by the United States Federal Government in the 1960s to build robust, fault-tolerant communication via computer networks.
The terms Internet and World Wide Web are often used interchangeably in everyday speech; it is common to speak of "going on the Internet" when using a web browser to view web pages.
However, the World Wide Web or the Web is only one of a large number of Internet services.
The Internet is the global system of interconnected computer networks that use the Internet protocol suite (TCP/IP) to link devices worldwide.