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start of the ARPANet project

Enough work had already been done for ARPA to publish a plan to create a computer network called the ARPANET. ARPANET compiled the best ideas of teams from MIT, the National Physics Laboratory (UK) and the Rand Corporation. The network was growing and in 1971 ARPANET had 23 connected points.

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E-MAIL INTERVENTION

On June 21, 1971, the cryptic message "QWERTYUIOP" followed by the at sign (@) as a divider between the user and the recipient's computer, would become the first email in history.
Sent by Raymond Samuel “Ray” Tomlinson, an American computer programmer, it was an experiment at MIT, aimed at developing the first electronic mail system on the Arpanet, a precursor network to the Internet.
José Miguel Piquer, an academic from the Department of Computer Science at the University of Chile (DCC), points out that the first emails were all very different from the current ones. “Each system used its own standard, and the format used today, which is based on SMTP, a protocol invented in 1981, and RFC-822 of 1982, had not yet been defined.”

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START USING ARPANet
ARPANET was a computer network created by order of the Department of Defense of the United States (DOD) to use it as a means of communication between the different academic and state institutions. The first node was created at the University of California at Los Angeles (UCLA), and it was the backbone of the Internet until 1990, after completing the transition to the TCP/IP protocol, which began in 1983.

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

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Emergence of newsgroups
Newsgroups are a means of communication within the Usenet system in which users read and send text messages to different boards distributed between servers with the possibility of sending and replying to messages.

The system is technically different, but it works in a similar way to the discussion groups on the World Wide Web. Like this, like email and instant messaging, newsgroups work through the Internet.

There are client programs for reading and writing to newsgroups, usually integrated with an email client program. The messages are usually thematic and the traffic is huge, so only the most recent messages appear. Some news groups are moderate.

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Experimenting with TCP/IP

The acronym TCP/IP stands for "Transmission Control Protocol/Internet Protocol". It comes from the names of two important protocols in the protocol suite, namely the TCP protocol and the IP protocol.

In some respects, TCP/IP represents all the communication rules for the Internet and is based on the notion of an IP address, that is, the idea of ​​giving each computer on the network an IP address in order to route data packets. Because the TCP/IP suite of protocols was originally created for military purposes, it is designed to meet a number of criteria, including:

-divide messages into packets
-use an address system
- route data over the network
-detect errors in data transmissions

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TCP/IP Adoption

Understanding the main characteristics of the TCP/IP Internet protocol stack makes it possible to configure basic networks, so knowing TCP/IP is essential in any training focused on working with networks and the Internet (a protocol stack is called a protocol stack). ordered collection of protocols organized by layers).


If you want to learn everything you need to understand how the network protocol stack works, don't miss the 15 free days we offer to test our platform. You will have access to a large catalog of courses and workshops, including the TCP/IP course with which you will learn to configure and use basic network configurations.


The TCP/IP protocol grew out of a defense project called DARPA in 1969. In 1983 the new TCP/IP suite of protocols was adopted as the standard and eventually became the most widely used network and internet protocol standard.

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They had created 130 websites

The history of the web spans more than 30 years, in which periods of intense development have alternated with others of stagnation. This lesson aims to comment on the most important events that have occurred since 1991, focusing on the organizations that have guided the development of the web, on the published standards and recommendations, and on the most important browsers of each era.


This lesson aims to give an overview. More detailed and complete explanations can be found in other lessons dedicated to standards and recommendations, browsers, operating systems, and screens and timelines.

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The first Google search engine was born
The history of Google begins in 1995, at Stanford University. Larry Page was considering studying at Stanford and Sergey Brin, who was already studying there, was in charge of showing him around campus.

It is said that in their first meeting they did not agree on almost anything; however, they allied the following year. Working from their bedrooms, they built a search engine that used links to determine the importance of each page on the Web. This search engine was called Backrub.

Shortly after, Backrub was renamed Google (thank goodness!). The name, which referred to the mathematical expression of the number 1 followed by 100 zeros, accurately reflected Larry and Sergey's goal: to organize the world's information and make it universally useful and accessible.

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The popular document exchange system is born

Electronic data interchange (EDI) is when two companies exchange documents in a standard format. ... This automated feature enables data to be shared quickly, rather than taking hours, days, or weeks, as is the case with paper documents or other methods.

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The popular document exchange system is born

Electronic data interchange (EDI) is when two companies exchange documents in a standard format. ... This automated feature enables data to be shared quickly, rather than taking hours, days, or weeks, as is the case with paper documents or other methods.

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Youtube sees the light with the video titled "me in the zoo"
It was on April 23, 2005 that the first video in the history of YouTube was published. It is 19 seconds long and is titled "Me at the Zoo." The one on the screen is called Jawed Karim, one of the creators of the platform.

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Twitter is born to revolutionize the internet and the so-called microblogging
Twitter is a social networking and microblogging service for real-time communication used by millions of people and organizations. Twitter users stay connected by posting updates, known as "tweets," to the site to share, exchange and discover information. Tweets are 140 characters or less and can contain ideas and various types of information, such as photos, videos, and links to articles. Users can access these messages posted on Twitter via the Web or on a mobile device with an Internet connection. Once a user posts a tweet, the message is posted to their profile and sent to the home pages (or feeds) of the user's followers who have subscribed to that user's Twitter updates. Users can scroll through their feed to consume Twitter updates from followers that can be anything from a personal observation to breaking news. Users can follow or be followers of friends, family, co-workers, organizations, companies, and public figures.

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Internet is no longer used through computers. the phone comes to light
With the iPhone and its great popularity, the Internet has evolved adapting to this type of device, smartphones, with large screens for mobile phones. Mobile Internet has existed since the days of WAP, but it was not until the popularization of smartphones and mobile broadband connections that the Internet began to move in that direction.

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Apple will present the new phone 7 on September 7
San Francisco, September 7, 2016—Apple® today introduced iPhone® 7 and iPhone 7 Plus, the best and most advanced iPhone yet. Both models are packed with innovations that improve the ways you use iPhone every day. The new iPhone has advanced new camera systems that take photos like never before, delivering more power and performance with the longest battery life in an iPhone. It also includes stereo speakers with immersive sound, a wide color gamut from camera to screen, and two stylish new finishes. In addition, it is the first iPhone resistant to water and dust. iPhone 7 and iPhone 7 Plus will be available in more than 25 countries starting Friday, September 16.