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Direct dial overcomes operator interference
Until 1891, calls were put through by exchange operators, but this was done away with by a Kansas City man who invented the direct dial system because he was paranoid enough to think that the operators were sending his business calls to competitors. He was an undertaker.
In 1927, the first transatlantic call was made over radio waves. During both World Wars, telephone advancements grew by leaps and bounds because of heavy spending by the Defense Department. Innovations resulting from war-time experiments included Bell Telephone’s first mobile telephone system, which connected moving vehicles to landlines via radio. Surprisingly, this was as early as 1946, a year that also saw the development of coaxial cables for major transmission improvements with less interference.
In the 1960’s, telephones were so much a part of the landscape that Bell Telephone could no longer continue to use the alpha-numeric codes for telephone exchanges (remember using numbers like Normandy-7610?) and switched to longer, all numeric numbers. At the same time, transatlantic cables were being laid to accommodate the increased demand for intercontinental telephone communication. One of the most important shifts in telephone history was the launch of the first telephone satellite in July of 1962. TelStar was a joint venture between Bell and NASA and revolutionized telephone communications like nothing that had come before. Satellites in geosynchronous orbit could now be used for long distance calls without the need for laying endless lines of cable and did away with the problem of frequent cable damage and repair.
Direct dial overcomes operator interference
Until 1891, calls were put through by exchange operators, but this was done away with by a Kansas City man who invented the direct dial system because he was paranoid enough to think that the operators were sending his business calls to competitors. He was an undertaker.
In 1927, the first transatlantic call was made over radio waves. During both World Wars, telephone advancements grew by leaps and bounds because of heavy spending by the Defense Department. Innovations resulting from war-time experiments included Bell Telephone’s first mobile telephone system, which connected moving vehicles to landlines via radio. Surprisingly, this was as early as 1946, a year that also saw the development of coaxial cables for major transmission improvements with less interference.
In the 1960’s, telephones were so much a part of the landscape that Bell Telephone could no longer continue to use the alpha-numeric codes for telephone exchanges (remember using numbers like Normandy-7610?) and switched to longer, all numeric numbers. At the same time, transatlantic cables were being laid to accommodate the increased demand for intercontinental telephone communication. One of the most important shifts in telephone history was the launch of the first telephone satellite in July of 1962. TelStar was a joint venture between Bell and NASA and revolutionized telephone communications like nothing that had come before. Satellites in geosynchronous orbit could now be used for long distance calls without the need for laying endless lines of cable and did away with the problem of frequent cable damage and repair.
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До 1891, звонки были положить через операторов по обмену, но это было сделано с помощью Канзас-Сити человека, который изобрел систему с прямым набором, потому что он был параноик, чтобы думать, что операторы посылали его деловые звонки конкурентам. Он был владельцем похоронного бюро.
В 1927 году первый трансатлантический звонок был сделан через радиоволны. Во время обеих мировых войн, телефоном достижений рос как на дрожжах из-за больших затрат на Министерство обороны. Инновации в результате военных экспериментов в комплекте Белл Телефон первая система сотовой телефонной связи, которая соединяла движущихся транспортных средств на стационарные телефоны через радио. Удивительно, но это было уже в 1946 году, в год, что также видели развитие коаксиальных кабелей для передачи основных улучшений с меньшим вмешательством.
В 1960 году, телефоны были столь же неотъемлемой частью пейзажа, что Белл Телефон больше не могли продолжать использовать буквенно-цифровые коды для телефонных станций (помните, с помощью номера, как Нормандия-7610?) и переключился на дольше, все числовые номера. В то же время, трансатлантические кабели были проложены с учетом увеличенного спроса на межконтинентальной телефонной связи. Одним из важнейших сдвигов в истории телефона был запуск первого спутника телефон в июле 1962 года. Telstar был совместным предприятием между Bell и NASA и революцию в телефонной связи, как будто ничего, что надо было приезжать раньше. Спутники на геостационарной орбите могут использоваться для междугородних звонков без необходимости прокладывания бесконечных линий кабельных и покончил с проблемой частого повреждения кабеля и ремонт .