Telecommunications

By ivannanicolas

  • The Telegraph

    The Telegraph
    The first global communication system was the telegraph, that have the similar characteristics like is instantaneous, communicate by long-distance and inexpesive, this invention was created by Samuel Morse in 1835. The telegraph used the Morse code, they used this code because could easilybe implemented with electrical technology at that time. USA was the first country to use it, in the Atlantic and Pacific coast.

  • Fixed Telephone

    Fixed Telephone
    The telephone was a revolutionary invention, is a device which allows the human voice to be transmitted over distance. the telephone was created by the American Alexander Graham Bell, but in fact, this was created by an Italian immigrant called Antonio Meucci, but of financial problems he didn't patent the telephone, so 16 years later, Alexander get the patent.

  • Radio

    Radio
    It's a system that enables the transmission of remote signals through a type of electromagnetic waves, that used the morse code to communicate. JC Maxwell and H.R Hertz were the responsibles of this invention, but Maxwell started the proyect of the radio. As we know the radio today, was invented by R. Fessenden in 1906, but in 1920 was when the radio became popular over the world.

  • Television

    Television
    Allows the remote transmission of sound and moving images, synchronised. It was invented by John L. Baird, Charles F. Jenkins and Vladimir Zworykin. In 1936 the Olimpic Games were broadcasts and in 1969 the arrival of Neil Armstrong and Buzz Aldrin to the moon. There are many types of TV, but the Internet television is the most used, which is via the Internet.

  • Mobile Telephone

    Mobile Telephone
    The mobile telephone is a wireless telecommunication system hat allow us communicate by radio waves. It was made by Martin Cooper, he was inspired by the series 'Star Trek', but today the model of the telephone is very different. The popularization of this was in the 90's, when the first small size and low price appeared. When it was created few phones could use network, in the 90s the digitization increased like sending text messages, and in the third and fourth generation are like computers.