In the year 1973, the first successful demonstration of mobile phone communication was done by Dr. Martin Cooper and John Mitchell of the Motorola Company. The handset used was bulky and it weighed about one kilogram. This was still in the research stages. In 1983, the first commercially available cell phone handset was launched and it was called the DynaTAC8000x. From then on, there was a gradual growth in the development of the handsets, as well as the infrastructure used in mobile telephony. The adoption of the cell phone technology by the masses has also led to an increase in research and its expansion by the manufacturers.
There are many technological applications that have been tried and tested for cell phone usage. The most widely used is known as the Global System for Mobiles (GSM) network. This is a network that allows mobile phones, that have been made by different companies...
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OneSIMcard.com “International Mobile Phone Rental Solution” 17 Feb. 2009. 12 Mar. 2014. http://www.onesimcard.com/?idmenu=3. Web.
Rainie, Lee. Pew Research Center. FactTank. News in the Numbers. “Cell Phone Ownership Hits 91% of Adults.” http://www.pewresearch.org/fact-tank/2013/06/06/cell-phone- ownership-hits-91-of-adults/. Web.
Segan, Sascha. PC Magazine. “CDMA vs. GSM: What's the Difference?” 5 Dec. 2013. 11 Mar. 2014. http://www.pcmag.com/article2/0,2817,2407896,00.asp. Web.
Smith, Aaron. Pew Research Internet Project. June 5, 2013. http://www.pewinternet.org/2013/06/05/smartphone-ownership-2013/. Web.
Storm, Laurel. Demand Media. Opposing Views. “How Cell Phones Have Changed the World.” 10 Mar. 2014. http://science.opposingviews.com/cell-phones-changed-world- 1856.html. Web.
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