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What is ARPANET/meaning/concept/elaboration

ARPANET is the direct precedent of the Internet , a network that came into operation in October 1969 after several years of planning . Although younger people think that the Internet has always existed, which for the elderly is something very recent, the correct term is – as in so many other things – the medium, and ARPANET represents a step in this trajectory, with a short history.

military origin

Its driving force was the DARPA (Defense Advanced Research Projects Agency), an agency of the United States government, dependent on the Department of Defense of that country and which still exists today.

In its origins, it connected research centers and academic schools to facilitate the exchange of information between them in order to promote investigation . As a Department of Defense enterprise, it is understood that military research was also part of this information exchange. ARPANET

It is also explained, without clear foundation, that the ARPANET project was carried out thinking of supporting a possible nuclear attack by the USSR, from then on, most likely, the network of networks showed the immense resistance it has in the face of major disasters and attacks.

It was the first network to use a packet communication protocol , without the need for central computers, being, like today’s Internet, totally decentralized.

On the way to creating the Internet

In 1983, the separation of the US military network (MILNET) from the ARPANET was materialized, this one that was growing in the civilian sector and already presented risks to the cyber security of the United States, although not like now, of course. ARPANET

The NSF (National Science Foundation) shortly after absorbed the ARPANET, which ended up disappearing in 1989, submitted by the new and radiant Internet.

Precursor of some technical milestones

ARPANET’s historic imprint on today’s Internet can be seen in many ways. The most evident is the use of TCP / IP as a standard communication protocol used in network networks and launched in 1972 by ARPANET.

Other Internet services that are less evident today, such as a web (which is nothing more than another service ) that came to monopolize everything and also dates back to that time, in addition to e-mail, invented by Ray Tomlinson in 1972, which to this day it continues to be used for our communication, although with very different interfaces from the original ones. ARPANET

Another service that also originated in ARPANET was FTP (File Transfer Protocol), which allowed and still allows the storage and downloading of files.

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