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This year the italian Antonio Meucci invented the first telephone-like device
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Alexander Graham Bell was given the first patent for the invention of the telephone.
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Elisha Gray designed a telephone using a water microphone in which the sound waves from a human voice make the water vibrate up and down.
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Alexander Graham Bell patented his first electric speaker capable of reproducing human voice.
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Thomas Edison invented the carbon microphone which produced a strong telephone signal
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John Logie Baird invented the first public television system and the first tube of revolutionary colour television.
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Guillermo Marconi invented the radio by connecting Europe and America for the first time by means of a signal
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Nathaniel Baldwin experimented with compressed air to amplify sound and used this to develop the first headphones
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The first transcontinental phone call was madein 1915. The interlocutors were Graham Bell and Thomas Watson, who were in New York and San Francisco.
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It was developed in the early 1950s and in 1958 was produced in limited quantities
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The first virtual reality headset was created in 1968 by American computer scientist Ivan Sutherland and his student, Bob Sproull.
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They were released RAM memories based on silicon semiconductors
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It was a very simple tennis game, similar to the classic 1970s video game Pong
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Martin Cooper invented the first mobile phone which weighed more than two kilos.
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Steve Jobs and Steve Wozniak, brought a new vision to change the way people viewed computers.
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The first true smartphone was called the Simon Personal Communicator
