Fax
Autor: neurônio torrado | Publicado: 2011-08-09T19:03:00-07:00

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O nome “FAX” vem de fac-símile que, em latim, significa “faz igual”. Embora tenha sido produzido em larga escala só a partir da década de 70, foi inventado através da união de várias tecnologias surgidas ao final do século XIX, como o telégrafo o telefone. O primeiro protótipo surge em 1926, como melhoramento da patente conseguida por Alexander Bain (1843, data oficial da invenção), sobre a transmissão de documentos a longa distância que e os telefones desenvolvidos nos Laboratórios Bell.  
Se observarmos alguns dos primeiros modelos, podemos ter uma excelente ideia de como eles funcionam hoje. A maioria dos primeiros modelos empregava um cilindro giratório. Para enviar um fax, você colocava a folha de papel no cilindro com a parte impressa virada para o lado de fora. O resto do aparelho funcionava mais ou menos deste jeito:• havia um pequeno fotossensor dotado de uma lente e uma luz;• o fotossensor estava preso a um braço, de frente para a folha de papel;• à medida que o cilindro girava, o braço movia-se de uma ponta a outra sobre a folha de papel.Em outras palavras, o aparelho funcionava mais ou menos como um torno mecânico.Fonte:   http://www.mundomax.com.br/blog/tag/a-historia-do-fax/