Teens-and-Mobile-Phones (1)

A brief history of the mobile phone as a technology

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Unformatted text preview: dealing with teen texters involved 552 teens in the sample and has a margin of error of 5 percentage points. A brief history of the mobile phone as a technology The idea for cellular telephony originated in the US. The first cellular call and the first call from a hand held cellular device also were placed in the US. The cell phone merges the landline telephony system with wireless communication. The landline telephone was first patented in 1876. Mobile radio systems have been used since the early 1900 ’s in the form of ship to shore radio, and were installed in some police cars in Detroit starting in 1921. The blending of landline telephone and radio communication came after the Second World War. The first commercially available "mobile radiophone service" that allowed calls from fixed to mobile telephones was offered in St. Louis in 1946. By 1964 there were 1.5 million mobile phone users in the US. 8 This was a non cellular system that made relatively inefficient use of the radio bandwidth. In addition, the telephones were large, energy intensive car -mounted devices. According to co...
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