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The first radio was made by a young Italian inventor called Guglielmo Marconi
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The first radar system was made in 1935 by the inventor Sir Robert Watson-Watt, and by 1939 England had established a chain of radar stations along its south and east coasts to detect enemies in the air or on the sea.
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The first colour television was a revolutionary part in technology's history since it made programs now watchable in colour.
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The punch cards for a time was the best storage devices for electronics around since it could hold computer programs and also were used in jobs to register in.
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The first video game ever marketed, the aim of the game was to defeat the person you are facing off against in a simulated tennis game by getting the highest score.
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The first PC, it was a revolutionary product and has surely changed the world.
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The first computer animated movie, these ragtag bunch of toys such as Woody (Tom Hanks) have surely changed the way films are made today.
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