Fifty-seven years ago, the internet originated with a message that could not be fully transmitted. On October 29, 1969, researchers connected two computers on the Arpanet network, which became the precursor to the modern internet. The first message was intended to read 'LOGIN,' but the system stopped after transmitting only the letters 'LO.'
This initial data exchange marked an important stage in computer communication. Nevertheless, the modern internet formed as a result of a complex process involving protocol standardization and the development of technologies that simplified network access.
In the late 1960s, the United States government launched Arpanet (Advanced Research Projects Agency Network)—an experimental network connecting computers at research institutions. The goal of this network was to allow scientists remote access to machines and shared resource utilization.
At the time, computers were expensive and bulky devices. The ability to use these apparatuses remotely allowed researchers from different organizations to share computational power.
The first transmission took place between the University of California, Los Angeles (UCLA), and the Stanford Research Institute, which later became known as SRI International. The network also connected computers at the University of California, Santa Barbara, and the University of Utah.
Leonard Kleinrock, a researcher from UCLA, was part of the team responsible for the first connection. Although the attempt to send 'LOGIN' ended after the first two letters, Arpanet demonstrated that computers at various institutions could communicate through a common network.
The 1969 connection was just one step in this evolution. On January 1, 1983, TCP (Transmission Control Protocol) and IP (Internet Protocol) protocols were adopted as standards for Arpanet and other computer networks. These protocols established common rules for machine interaction, so their implementation is considered by many to be the true beginning of the internet: while Arpanet provided computer connectivity, TCP/IP helped integrate diverse networks.
In 2009, Marc Weber, founder of the Internet History program at the Computer History Museum, noted that Arpanet helped overcome the isolation of groups using large computers in isolation, thereby paving the way for a connected environment.
Another significant moment occurred in the 1990s when British scientist Tim Berners-Lee developed the World Wide Web (WWW). This system facilitated access to content over the internet and contributed to its popularization. Although the Web did not create the computer connection itself, it made navigating the network more accessible.
The expansion of the network was accompanied by the emergence of browsers and the proliferation of websites and services. Examples include Internet Explorer, Netscape, Mozilla Firefox, Google Chrome, Opera, and Lynx. Communication services and social networks, such as Orkut, Facebook, MSN, and Twitter, increased user interaction capabilities.
The arrival of the internet in Brazil also began in academic circles. In the late 1980s, Brazilian universities started exchanging information with US institutions, establishing connections that promoted the adoption of the technology in the country.
In 1989, the National Network of Education and Research (RNP) was created, an initiative aimed at connecting educational and research institutions. This network became part of the early efforts to structure communication between these centers and expand the use of the technology in academia.
Another milestone occurred in 1997 when local connection networks helped spread access to other parts of the country. These milestones demonstrate a gradual transition: the internet, initially linked to information exchange between research institutions, gained a broader connection structure that served as the basis for its expansion in Brazil.