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Wireless technologies have had a long boom and development in recent years. One that has had a great development has been wireless. Since its inception in the late 70's has greatly revolutionized the activities we do daily. Cell phones have become a primary tool for ordinary people and business, makes them feel safer and more productive.
Although cellular telephony was designed strictly for voice cellular technology today is able to provide other services such as data, audio and video with some limitations. However, tomorrow's wireless will enable applications that require increased consumption of bandwidth.
Martin Cooper pioneered this technology, it is considered "the father of mobile telephony" to enter the first radio in 1973, the United States while working for Motorola, but it was not until 1979 when the first commercial systems in Tokyo, Japan by NTT.
In 1981, the Nordic countries introduced a cellular system similar to AMPS (Advanced Mobile Phone System). On the other hand, in the U.S., thanks to the regulator in that country adopted rules for the creation of a cell phone commercial in 1983 was put into operation the first commercial system in the city of Chicago.
With that starting point, in several countries has spread mobile telephony as an alternative to conventional wireless telephony.

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A letter, via light ...

Email also known as e-mail, is a technological resource that allows us to communicate from anywhere in the world through Internet. In 1971 Ray Tomlinson, an engineer at Bolt Beranek and Newman firm hired by the U.S. government to build the Arpanet (the precursor to Internet), had the idea of \u200b\u200bcreating a system to send and receive messages across the network . Tomlinson had written a program for developers of Arpanet messages were left on shared computers (15 in the whole national network). Playing with other protocol to transfer files between machines scattered throughout the network, noted that together could be used to access all mailboxes. The text of the first message sent by e-mail was something like "QWERTYUIOP (random keystrokes on the keyboard because of evidence) by its inventor and sent through a program called SNDMSG he wrote.

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Although one might think that the Internet is something that has emerged in recent times, not so: Internet and has been with us a few decades. The early Internet
us back to the years 60. In the Cold War, the U.S. military create a system solely with the objective that in the unlikely event of a Russian attack, they could have access to military information from anywhere in the country. This network was established in 1969 and was called ARPANET.
ARPANET continued to grow and open to the world, and anyone with academic or research purposes could access the network. Military functions dissociated themselves from ARPANET and MILNET went to a new network created by the United States. The NSF (National Science Foundation) creates its own computer network called NSFNET, which later absorbed ARPANET, creating a large network with purposes científicos y académicos. El desarrollo de las redes fue abismal, y se crean nuevas redes de libre acceso que más tarde se unen a NSFNET, formando el embrión de lo que hoy conocemos como INTERNET. Ésta es una gran red internacional de ordenadores, una red de redes, que permite compartir recursos, es decir establecer una comunicación inmediata con cualquier parte del mundo para obtener información sobre algún tema que nos interesa.
Actualmente es casi imposible calcular los sitios web que existen y los servidores a los que tenemos acceso. Internet se ha desarrollado en esta última década mucho, y en parte es debido a los fines comerciales de las empresas. Internet ya no es la red de investigación military or what it was created, now the Internet is primarily a business, and this has been what has driven its development.

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computers ... An absorbent

One of the most spectacular advances in communications, data communications, has occurred in the field of computer technology. Since the advent of digital computers in the 1940's, these have been introduced in developed countries in virtually all areas society (Industries, businesses, hospitals, schools, transportation, homes or businesses). Using computer networks and ancillary devices, the user of a computer can transmit data rapidly. These systems can access multiple databases. Through the telephone line can access this information and display it on a TV screen or adapted as necessary. Alan Turing, British mathematician who designed the first electronic digital computer and functional in the world in 1940.

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The prehistory of television covers a wide period extends apr oxime from the late nineteenth century until 1935. In principle two models emerge: the television defended by John Baird mechanical and electronic television created by the Russian-American researcher Vladimir Zworikyn. Although Baird's mechanical television began its emissions just before Zworikyn electronic television, the truth is that the technical superiority of the latter prevailed. Interrupted by World War I, its development was resumed at the end of the contest allowing his post between the mass extended communication as the press or radio. Accomplished stage of birth and consolidation, will color the time, and after it, the international nishing the environment and its contents. This international focus prompted the launch of the first communications satellites and other technologies such as distribution of cable television signal. Moreover TV extends to continents like Latin America and, in another sense, it creates a need which is the opposite appears to have local content. With local television completes the presence of television in all fields socialization of the individual, from global to local. In 1924 John Baird can reproduce in the laboratory the first television images.

During the decade of the 40 are some experimental television broadcasts, mostly in universities, but the history of TV in our country begins in the 50's . In July 1951, Jaime Yankelevich, a pioneer in the middle, with his son traveling to the U.S. Samuel to bring from there the first teams. In a long boat trip bring cameras, transmitters, cables, lights, spare parts and everything needed to launch television in Argentina. Jaime Yankelevich agrees with the Peronist government of that time making the first television broadcast on 17 October of that year. On that date marks the 6th anniversary of the Peronist Loyalty Day and performed a mass rally in the Plaza de Mayo. Eva Peron there delivering his speech to the people after the famous Historic Renunciation candidacy as vice president or the nation in the upcoming elections, because they were already very sick. With the aforementioned transmission is opened the old Channel 7, known then as LR 3 TV Radio Belgrano. And are the radio announcers of the same name which will go to work also in the channel. The first steps of the TV at that time have little impact on the print media since they fear that new media will "move the floor." On the other hand very few people have televisions in their homes. Most machines are in bars and shops and people are crowded against the windows of the same to see. On November 4 begins regular programming, as from 17 October to that day alone trials and tests were performed. And that same month, 18 passed the first football game (River - San Lorenzo). Programming in those early years consisted of folk shows, musical spaces, transmissions from the circus, fashion shows, "La Cocina de Dona Petrona", etc. And in 1952 the first soap operas were born (author pioneer: Celia Alcántara). In 1954 when the first Argentine television news, which was broadcast the night and presented a summary of the events during the day All the programs were live, with quick costume changes behind the studies and the ever-present "ghost forget the letter "for the actors. From the beginning, are present advertisements and sponsorships on TV.

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The Isic f Italian inventor Marconi Bologna Guigielmo, after two years experiments with the use of Hertz apparatus, the antenna Popov, and coherer Branly, an achievement made in Bologna in 1894, a transmission of wireless telegraphy at a distance of 250 meters. about the invention and patented in 1896. Without support in Italy for his great invention, he continued his experiences in Britain. In 1897, Marconi set up the first season de radio del mundo en la Isla de Wight, al Sur de Inglaterra y en 1898 abrió la primera factoría del mundo de equipos de transmisión sin hilos en hall street ( Chelmsford, Reino Unido) empleando en ella alrededor de 50 personas. En 1899 Marconi consiguió establecer una comunicación de carácter telegráfico entre Gran Bretaña y Francia. Tan sólo dos años después, en 1901, esto quedaría como una minucia al conseguirse por primera vez transmitir señales de lado a lado del Océano Atlántico. Las primeras transmisiones de carácter público no fueron llevadas a cabo hasta el año 1920, desde Chelmsford a iniciativa de la compañía English created by Marconi.

The August 27, 1920 takes place in Argentina's first radio broadcast. A group of young amateurs are responsible for airing Wagner's Parsifal opera from the Coliseo Theatre in Buenos Aries and passed into history with the name of "The Roaring of the roof." It was the doctor Enrique Susini with three medical students, his nephew and his friends Miguel Mujica Cesar and Luis Romero Carranza Guerrico. That August 27, 1920 between 21 and midnight, Enrique Susini was the kickoff to the story: "Ladies and gentlemen, the Radio Society Argentina presents today the sacred festival of Richard Wagner, Parsifal, starring tenor Maestri, Aldo Rossi Morelli baritone and soprano Sara Cesar Argentina, all with the orchestra of the Teatro Costanzi in Rome , directed by Master Felix von Weingarten. That's great invention of the "Crazy Roof" in 1920, will be deeply honored and take a new and deeper value when millions of voices are silenced they deserve on the radio and mass media.

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Radio All large screen ... Phone

The history of cinema begins on December 28, 1895, date on which the Lumiere brothers publicly projected sali da French factory workers in Paris. Film history has been dominated by the discovery and proof of paradoxes inherent in the medium itself. The film uses machines to record images of life, combining still photographs to give the illusion of continuous movement appears to be life itself, but also offers impossible realities to which only approximate dreams. The film was developed from the union of photography which records the physical reality, with the game of persistence of vision that made it appear that the pictures were moving. The film is considered the youngest art forms and has inherited much of the arts more old and traditional. However, it is one of the few arts that is both space and time, intentionally manipulating both the time and space. This synthesis has generated two conflicting theories about cinema and its historical development. Some theorists such as Sergei M. Eisenstein and Rudolf Arnheim, argued that cinema should take the path of the other modern arts and concentrate on telling stories and not represent reality, but to investigate time and space of a pure and consciously abstract. Others, such as Andre Bazin and Siegfried Kracauer, argue that cinema should completely and carefully develop their connections to nature so that it can portray human events as revealing and exciting as possible.

Cinema arrived in Argentina just after its launch in Paris, shortly after filming began and the first productions. Among other attractions, there were global pioneers in scientific and animation movies. But the real industry began only in 1933, with the statement sound film. The good times, when the Argentine films were seen in all of Latin America, lasted until the early 50s. Then, the gradual closure of the major studios, the growth of television, the stagnation of popular cinema and the isolation of an auteur imposed other rules. On these rules, the current Argentine cinema has restricted quantity and market, but retains a special quality, internationally recognized. The whole industry came with the talkies in 1933. Born about the same time Argentina Sono Film, Tango (which debuted Libertad Lamarque, Tita Merello and Luis Sandrini) and Lumiton, with the three berretines.