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Random freezes, missing sound and display glitches usually trace back to one bad driver. Find and replace yours safely.Free scan · under a minuteThe Internet evolved in stages: packet-switching research and ARPANET laid technical foundations; open protocols linked independently built networks; the World Wide Web made information easier to publish and browse; and commercial networks and mobile broadband widened access. The Web is one system that runs over the Internet—not another name for the Internet.
What the Internet is—and why it has no single start date
The Internet is a network of networks: independently designed systems connected so they can exchange data. Its history is therefore not the story of one device or invention. Packet-switching research and ARPANET established important foundations, while later work on open architecture and shared protocols made it possible for different networks to interconnect. The Internet Society describes this development as a way to link networks including packet satellite and packet radio systems. Internet Society: A Brief History of the Internet
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That staged history matters when asking when the Internet began. Early networks were not identical to today’s global system. Research, network construction, interconnection, standards work and commercial expansion all contributed to what people now call the Internet.
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The Internet and the World Wide Web are related but distinct. The Internet is the underlying network infrastructure; the Web is an information system that uses it, combining computers, data networks and hypertext so people can publish and follow linked information. Email, remote access and file transfer also use the Internet, but they are not the Web. CERN: A short history of the Web
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From a proposal to a working system
In March 1989, CERN engineer Tim Berners-Lee proposed a system to help researchers share information. CERN’s account says his supervisor, Mike Sendall, annotated the proposal “Vague, but exciting.” By the end of 1990, a Web server and browser were working at CERN; Web software was released and announced in 1991. The Web grew from a scientific information-sharing need, rather than appearing all at once as a consumer service. CERN: A short history of the Web CERN: The people behind the Web
Why the Web spread quickly
In early 1993, the Mosaic browser helped make the Web more accessible. On 30 April 1993, CERN made Web source code available royalty-free, helping others build on it. CERN’s historical account reports more than 500 known Web servers and 1% of Internet traffic by late 1993. By the end of 1994, it records 10,000 Web servers—2,000 commercial—and 10 million users. These are milestones in CERN’s history, not current counts. CERN: A short history of the Web
How the Internet’s institutions and economics changed
The Internet’s growth relied on more than technical invention. Open protocol documentation and collaborative standards work allowed different networks and vendors to implement compatible systems. This shared approach helped the Internet evolve beyond any one network or company. Internet Society: A Brief History of the Internet
Its infrastructure and funding changed too. The Internet Society’s historical account says NSFNET backbone funding ended in 1995, after which regional networks shifted to buying national-scale connectivity from private long-haul networks. It reports that more than 50,000 networks existed by then, around 29,000 of them in the United States. This marked a shift in how the growing network was provisioned, not the moment the Internet was invented. Internet Society: A Brief History of the Internet
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How Internet access has changed—and who still lacks it
Access now includes extensive mobile broadband as well as fixed connections. The International Telecommunication Union (ITU) estimated that about 6 billion people—74% of the world’s population—used the Internet in 2025, while 2.2 billion remained offline. These are annual estimates, not a live headcount. ITU: Facts and Figures 2025
Mobile connectivity expanded substantially over the decade to 2025. ITU reported that mobile broadband accounted for 89% of mobile subscriptions in 2025, compared with less than 50% in 2015. It estimated that 5G made up about one-third of mobile broadband subscriptions in 2025. Subscriptions are not the same as unique people: one person may have several, and some serve connected devices. ITU: 5G subscriptions already represent more than one-third of all mobile broadband subscriptions
Coverage remains uneven. In 2025, ITU estimated that 5G networks reached 55% of the global population, but coverage was 84% in high-income countries and 4% in low-income countries. Being within coverage does not by itself mean a person can afford a connection or has service of adequate quality. Nor does the growth of mobile access mean fixed networks have disappeared: both remain part of how people connect. ITU: Facts and Figures 2025
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The Internet’s evolution in four shifts
| Dimension | Earlier stage | Later development |
|---|---|---|
| Architecture | Purpose-built networks | Open interconnection among independent networks |
| Common uses | Remote access, email and file transfer | The Web became a widespread hypertext information system alongside other Internet services |
| Provision | Research-backed backbone infrastructure | Private long-haul networks and commercial connectivity |
| Access and reach | Network access available to fewer people | Broader use through fixed and mobile broadband, with persistent gaps in access and quality |
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