The Internet is the global system of interconnected computer networks that use the Internet protocol suite (TCP/IP) to link devices worldwide.

The Internet protocol suite is the conceptual model and set of communications protocols used on the Internet and similar computer networks.

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. Most traditional communications media, including telephony, radio, television, paper mail and newspapers are reshaped, redefined, or even bypassed by the Internet, giving birth to new services such as email, Internet telephony, Internet television, online music, digital newspapers, and video streaming websites.

Voice over Internet Protocol (also voice over IP, VoIP or IP telephony) is a methodology and group of technologies for the delivery of voice communications and multimedia sessions over Internet Protocol (IP) networks, such as the Internet.

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 World Wide Web (WWW), also called the Web, is an information space where documents and other web resources are identified by Uniform Resource Locators (URLs), interlinked by hypertext links, and accessible via the Internet.

The primary precursor network, the ARPANET, initially served as a backbone for interconnection of regional academic and military networks in the 1980s. Research into packet switching, one of the fundamental Internet technologies started in the early 1960s in the work of Paul Baran, and packet switched networks such as the NPL network by Donald Davies, ARPANET, Tymnet, the Merit Network, Telenet, and CYCLADES, were developed in the late 1960s and 1970s using a variety of protocols.

Both technologies became the technical foundation of the Internet.

Most traditional communications media, including telephony, radio, television, paper mail and newspapers are reshaped, redefined, or even bypassed by the Internet, giving birth to new services such as email, Internet telephony, Internet television, online music, digital newspapers, and video streaming websites.

An online music store is an online business which sells audio files over the Internet, usually sound recordings of music songs or classical pieces, in which the user pays on a per-song or subscription basis.

The Internet has enabled and accelerated new forms of personal interactions through instant messaging, Internet forums, and social networking.

Instant messaging (IM) technology is a type of online chat that offers real-time text transmission over the Internet.

The linking of commercial networks and enterprises by the early 1990s marked the beginning of the transition to the modern Internet, and generated a sustained exponential growth as generations of institutional, personal, and mobile computers were connected to the network.

Many such devices can connect to the Internet and interconnect with other devices such as car entertainment systems or headsets via Wi-Fi, Bluetooth, cellular networks or near field communication (NFC).

Most traditional communications media, including telephony, radio, television, paper mail and newspapers are reshaped, redefined, or even bypassed by the Internet, giving birth to new services such as email, Internet telephony, Internet television, online music, digital newspapers, and video streaming websites.

Streaming television (or streaming TV) is the digital distribution of television content, such as TV shows, as streaming video delivered over the Internet.

Newspaper, book, and other print publishing are adapting to website technology, or are reshaped into blogging, web feeds and online news aggregators.

A website may be accessible via a public Internet Protocol (IP) network, such as the Internet, or a private local area network (LAN), by referencing a uniform resource locator (URL) that identifies the site.

Although the Internet was widely used by academia since the 1980s, the commercialization incorporated its services and technologies into virtually every aspect of modern life.

Prior to the disestablishment 1995 commercial traffic on the Internet in the United States was limited by law, and prior to 1988 for the most part strictly forbidden, with the exception of traffic with research and defense aims.

Only the overreaching definitions of the two principal name spaces in the Internet, the Internet Protocol address (IP address) space and the Domain Name System (DNS), are directed by a maintainer organization, the Internet Corporation for Assigned Names and Numbers (ICANN).

The Domain Name System (DNS) is a hierarchical decentralized naming system for computers, services, or other resources connected to the Internet or a private network.

Online shopping has grown exponentially both for major retailers and small businesses and entrepreneurs, as it enables firms to extend their "brick and mortar" presence to serve a larger market or even sell goods and services entirely online.

Online shopping is a form of electronic commerce which allows consumers to directly buy goods or services from a seller over the Internet using a web browser.

Online shopping has grown exponentially both for major retailers and small businesses and entrepreneurs, as it enables firms to extend their "brick and mortar" presence to serve a larger market or even sell goods and services entirely online.

This term is usually used to contrast with a transitory business or an Internet-only presence, such as fully online shops, which have no physical presence for shoppers to visit, talk with staff in person, touch and handle products and buy from the firm in person.

The Internet is the global system of interconnected computer networks that use the Internet protocol suite (TCP/IP) to link devices worldwide.

The best-known computer network is the Internet.

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.

As implemented on the Web, hypertext enables the easy-to-use publication of information over the Internet.

Commercial Internet service providers (ISPs) emerged in the late 1980s and early 1990s.

An Internet service provider (ISP) is an organization that provides services for accessing, using, or participating in the Internet.

Most traditional communications media, including telephony, radio, television, paper mail and newspapers are reshaped, redefined, or even bypassed by the Internet, giving birth to new services such as email, Internet telephony, Internet television, online music, digital newspapers, and video streaming websites.

Live streaming is the delivery of Internet content in real-time, as events happen, much as live television broadcasts its contents over the airwaves via a television signal.

When the term Internet is used to refer to the specific global system of interconnected Internet Protocol (IP) networks, the word is a proper noun that should be written with an initial capital letter.

Its routing function enables internetworking, and essentially establishes the Internet.

The technical underpinning and standardization of the core protocols (IPv4 and IPv6) is an activity of the Internet Engineering Task Force (IETF), a non-profit organization of loosely affiliated international participants that anyone may associate with by contributing technical expertise.

Internet Protocol version 6 (IPv6) is the most recent version of the Internet Protocol (IP), the communications protocol that provides an identification and location system for computers on networks and routes traffic across the Internet.

ICANN coordinates the assignment of unique identifiers for use on the Internet, including domain names, Internet Protocol (IP) addresses, application port numbers in the transport protocols, and many other parameters.

A domain name is an identification string that defines a realm of administrative autonomy, authority or control within the Internet.

The technical underpinning and standardization of the core protocols (IPv4 and IPv6) is an activity of the Internet Engineering Task Force (IETF), a non-profit organization of loosely affiliated international participants that anyone may associate with by contributing technical expertise.

It is one of the core protocols of standards-based internetworking methods in the Internet, and was the first version deployed for production in the ARPANET in 1983.

Access to the ARPANET was expanded in 1981 when the National Science Foundation (NSF) funded the Computer Science Network (CSNET).

It played a significant role in spreading awareness of, and access to, national networking and was a major milestone on the path to development of the global Internet.

Six months later Tim Berners-Lee would begin writing WorldWideWeb, the first web browser after two years of lobbying CERN management.

He made a proposal for an information management system in March 1989, and he implemented the first successful communication between a Hypertext Transfer Protocol (HTTP) client and server via the internet in mid-November the same year.

In 1991 the Commercial Internet eXchange was founded, allowing PSInet to communicate with the other commercial networks CERFnet and Alternet.

It was an important initial effort toward creating the commercial Internet that we know today

Research into packet switching, one of the fundamental Internet technologies started in the early 1960s in the work of Paul Baran, and packet switched networks such as the NPL network by Donald Davies, ARPANET, Tymnet, the Merit Network, Telenet, and CYCLADES, were developed in the late 1960s and 1970s using a variety of protocols.

Sprint migrated customers from Telenet to the modern-day Sprintlink IP network, one of many networks composing today's Internet.