The internet is a global system of interconnected computer networks that use the standard Internet protocol suite (TCP/IP) to link several billion devices worldwide. It is a network of networks that consists of millions of private, public, academic, business, and government networks, of local to global scope, that are 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.
The origins of the Internet date back to the research commissioned by the United States Department of Defense in the 1960s to enable time-sharing of computers. The network backbone was initially formed by interconnecting regional academic and military computer networks in the 1980s. By the mid-1990s, it had evolved into the global commercial Internet.
The Internet has had a profound impact on human society. It has revolutionized the way we communicate, learn, and work. It has also created new opportunities for economic growth and social development.
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