The World Wide Web

Cerf’s protocol transformed the internet into a worldwide network. Throughout the 1980s, researchers and scientists used it to send files and data from one computer to another. However, in 1991 the internet changed again. That year, a computer programmer working at the CERN research center on the Swiss-French border named Tim Berners-Lee introduced the World Wide Web: an internet that was not simply a way to send files from one place to another but was itself a “web” of linked information that anyone on the Internet could retrieve. Berners-Lee created the Internet that we know today.

In 1992, a group of students and researchers at the University of Illinois developed a sophisticated browser that they called Mosaic. (It later became Netscape.) Mosaic offered a user-friendly way to search the Web: It allowed users to see words and pictures on the same page for the first time and to navigate using scrollbars and clickable links.