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http://inventors.about.com/od/gstartinventors/a/Gutenberg.htm In 1440 Johannes Gutenberg invented the first printing press a hand printing press. It was just ink rolling over letters
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http://www.history.com/topics/inventions/telegraphSamuel morse to transmit information secertly and through wires.It helped long distance communications
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http://www.pbs.org/wgbh/amex/telephone/timeline/timeline_text.htmlb Alexander Graham Bell wanted to invent a machine that would transmit sound by electrity . He wanted people to be able to commucatite from long distance . So he invented the telephone in 1876
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http://inventors.about.com/od/tstartinventions/a/Typewriters.htm Christopher Sholes invented the first modern typewriter in 1866. He got fiancial help from his business partners Samuel Soule and Carlos Glidden .
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http://inventors.about.com/library/blcoindex.htm The first freely programmable computer was invented in 1936 by Konrad Zuse. It was a Z1 Computer