How Do Cell Phones Work?
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This paper features a detailed description and analysis of cell phone technology and how it works. The paper explains that cell phones have become thoroughly integrated into our lives, and that many can double as a digital camera, an iPod, a GPS system, and can also run multiple online applications. In giving a historical overview, the paper notes that the first cell phone, which was introduced in 1975, was called the Motorola Dyna-Tac; it weighed around 2.5 pounds, took 10 hours to charge, featured only 35 minutes of talk time, and retailed for $3,500. The paper goes on to note the similarities of cell phones to radios, and discuss tower technology. In conclusion, the author expresses the hope that readers can use this knowledge when necessary - for example, to petition to have a new base tower built in their area.
From the Paper:"To put it simply, your cell phone is actually very similar to a radio. Cell phones use radio signals and towers to work. Cell phones are built with a transmitter that is used to transmit radio signals when the phone is powered on. However, this is only how your cell phone received a call, not how you and the other person use a cell phone to talk or text. To actually have a conversation with someone using a cell phone, the phone and radio signals are dependent upon something that is called a base station. The base station are transmitter towers that are smaller in size and based almost anywhere, including your own neighborhood (the massive ones you see are channel towers, which the base towers use as an anchor. The channel towers then send signals to satellites orbiting in space.) When you place a call, your signal is captured by a base tower and how close you physically are to the base tower determines your signal strength. Police can use your signal to track you if you are missing and can find almost your exact location once you dial a number because "when you dial a particular number, the base station will automatically identify that number and assign an encrypted code on its transmission." (Carly 2009). This literally means that when you dial a number, each phone number is given a unique encrypted code that is like a tracking number. No phone number is the same and because of that, Police can track your whereabouts."
Sample of Sources Used:
- Gupta, Puneet. "Short Message Service: What, How, and Where?" Wireless Developer Network. Web. 02 May 2010. <http://www.wirelessdevnet.com/channels/sms/features/sms.html>.
- Farley, Tom. "Privateline.com: Digital Wireless Basics Splash Page." Daily Notes. Web. 02 May 2010. <http://www.privateline.com/PCS/splash.htm>.
- "How Do Cell Phones Work: The Fundamentals Behind Cellular Communication Technology and How It Operates." Find Health, Education, Science & Technology Articles, Reviews, How-To and Tech Tips At Bright Hub - Apply To Be A Writer Today! Web. 02 May 2010. <http://www.brighthub.com/engineering/electrical/articles/3885.aspx>.
- Marples, Gareth. "The History of Cell Phones a " A Vision Realized." TheHistoryOf.net. 30 June 2008. Web. 02 May 2010. <http://www.thehistoryof.net/history-of-cell-phones.html>.
Cite this Descriptive Essay:
How Do Cell Phones Work? (2010, June 13) Retrieved January 26, 2015, from http://www.academon.com/descriptive-essay/how-do-cell-phones-work-120394/
"How Do Cell Phones Work?" 13 June 2010. Web. 26 January. 2015. <http://www.academon.com/descriptive-essay/how-do-cell-phones-work-120394/>