It is 50 years since the first message sent on the first computer network "ARPANET"


Yesterday 50 years have passed since the first message sent in what today we would call the forerunner of what is today the INTERNET. And it On a Tuesday, October 29, 1969 at 22:30 p.m., California time in Hall 3420 at UCLA Boelter Hall (University of California, Los Angeles), the researchers established the first connection between two remote computers on the US military ARPANET network.

That day, the first remote data transmission was from a computer at UCLA to another computer at the Stanford Research Institute (now known as SRI International) on the other side of California.

This Tuesday, October 29, 2019 marked the birth of the ARPANET, the first remote data transmission network, thus laying the foundations of the Internet that we know today.

ARPANET stands for Advanced Research Projects Agency Network, that is, the Advanced Research Projects Agency Network, a body now known as the Defense Advanced Research Projects Agency.

The first interconnection was between a computer at the University of California, Los Angeles (UCLA) and another computer at the Stanford Research Institute. This first feat of scientists made it possible to send the first message in history over the Internet.

The initial ARPANET consisted of four IMPs installed in:

  • UCLA, where Kleinrock created the Center for Network Measurement. An SDS Sigma 7 computer was the first to connect.
  • The Augmentation Research Center, at the Stanford Research Institute, where Doug Engelbart created the novel National Language Services (NLS) system, a fledgling hypertext system. An SDS 940 computer was the first to connect.
  • The University of California, with an IBM 360 computer.
  • The Graphics Department, University of Utah, where Ivan Sutherland moved. With a PDP-10 initially connected.

In 1961, Leonard Kleinrock, published the first theoretical text about the exchange of packages. With which you have just laid the foundations for the principle of packet switching, the technology on which the Internet is based.

LO Arpanet

He developed the mathematical theory of data networks. Later, it will be used in the birth of the first ARPANET network.

He is also responsible for the implementation of the first ARPANET measurement means, which allowed him to set performance limits and evaluate the behavior of the ARPANET.

The first message sent using the new network was "LO", but it was inadvertently. Even though the scientists they had planned to send the word "LOGIN" but they didn't since after the first two letters were written the message was sent. The system crashed, but not before the first two letters, "LO" was sent. Soon after, the network was reestablished, the desired message was transmitted in its entirety, and a new era of connection was born.

Initially, ARPANET was to allow military and civil institutions to communicate more easily with each other.

"Initially, it was simply about saving money and increasing collaboration by sharing resources where people at each ARPA (ARPANET) site could connect and use computers at other sites," he said. Marc Weber, director of curation for the Internet history program at the Silicon Valley Museum of Computer History. "The immediate need was to share resources, the broader goal was to be a pioneer in sharing accessible networks," said Marc Weber.

50 years later, Leonard Kleinrock said that He never imagined what at that time was a military project would become one of the technological advances that would revolutionize communications because his idea was simply to make two computers communicate with each other or to make people communicate with computers.

'I hadn't seen the social media look at all. I thought about making people communicate with computers, or computers with each other, but not people with each other, ”said Leonard Kleinrock, who turned 85 in June. During the 50 years of the event, it has also opened another laboratory dedicated to the Internet.

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