Telecommunications: A History

  • Commercial Semaphore System

    Commercial Semaphore System
    Chappe brothers established the first commercial semaphore system between two locations near Paris. Napoleon used it a lot. Semaphore signaling spread to Italy, Germany and Russia. Thousands of men were employed manning the stations. The last operational semaphore system went out of business in 1860, Algeria.
  • First telegraph.

    First telegraph.
    Joseph Henry constructs the first telegraph by sending electronic currents accross over a mile of wire, subsequenty activating an electromagnet, causing a bell to ring
  • First trans-atlantic telegraph cable

    First trans-atlantic telegraph cable
  • First Telephone

    First Telephone
    At the age of 29, Alexander Graham Bell invents the first telephone.
  • Television

    Television
    Baird's company (Baird Television Development Company/Cinema Television) broadcast the first transatlantic television signal, between London and New York, and the first shore-to-ship transmission.
  • Transatlantic telephone cable

    Transatlantic telephone cable
  • First Artificial Satellite (Sputnik)

    First Artificial Satellite (Sputnik)
    Pushed by the cold war missile race, the world's first artificial satellite was launched by the Soviet Union.
  • First mobile (cellular) phone network

    First mobile (cellular) phone network
    After the first cellphone in 1981.
  • The World Wide Web goes public

    The World Wide Web goes public
    Development of the World Wide Web and the graphic user interface making it possible opened up a wealth of expanding information resources and growing public acceptance.- Learn more at www.technofunc.com. Your online source for free professional tutorials.
  • Internet Protocol (IP) Telephony

    Internet Protocol (IP) Telephony
    This is the tecnology used for smartphones. In the future, the world of telecommunications will work for an embraced and equal infrastructure, with no boundaries. Hence, this tecnology will also move towards a more centralized hardware and softwares, like the smartphones do. Likewise, services, not just the devices, will be movile. Technology will also work towards invading less privacy and being more ecofriendly.
  • Period: to Aug 20, 1000

    Greek Hydraulic Semaphore Systems (4th century BC)

    The hydraulic semaphores, which worked with water filled vessels and visual signals, functioned as optical telegraphs. However, they could only utilize very limited range of pre-determined messages and as with all such optical telegraphs could only be used during sunny days. LINK TO IMAGE: http://upload.wikimedia.org/wikipedia/commons/7/76/Greek_Hydraulic_Telegraph_of_Aeneas_relief.jpg