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CELL PHONES =) By : Ja’Nae Cole Technology pd 11 September 21,2010
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Martin Cooper pioneered Motorola’s research for cellular phones 1973 first person to make a call on a portable cell phone The first call he made was to his rival, Joel Engel
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This cell technology was first used in mobile rigs which was mainly used in taxis, police cars and other emergency vehicles and situations. First phone was the Motorola Could only be used for a hour These first mobile phones used analog technology
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Used by digital technology This most change has occured in the features. they went from just a cellphone with a phonebook to an all in one device including cellular calls Cell phones these days are a LOT smaller, lighter, and more convenient
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NNumbers have and will continue to be changed. -changed because states numbers are getting mixed up Also different people have the same numbers Cell phone companies are trying to get house phone companies to shut down
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OOriginated from a radio EEach city is divided up into cells that allow frequencies to be transferred. EEach cell has 56 voice channels ((meaning 56 phones can be used at once)
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=/=) Negative Talking or sending text messages on a cell phone while driving is proven to be as dangerous as driving under the influence of alcohol Teenagers are more worried about their cell phones than any thing else. Positive o Cell phones are a tool of convenience o Having internet access on cell phones allows individuals to check items such as airline schedules, sports scores, weather and traffic conditions o Having a cell phone now makes people reachable in almost any location as long as there is good reception
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Environments -Where do we live? What resources do we have or need? What are my responsibilities? Cell phones are a easier way to get in contact with people We uses cell phones for multiple reason that benefit us and make our lives easier
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http://www.historyofcellphones.net/ http://www.historyofcellphones.net/ www.thinkquest.org www.thinkquest.org http://www.cancer.org/Cancer/CancerCauses /OtherCarcinogens/AtHome/cellular-phones http://www.cancer.org/Cancer/CancerCauses /OtherCarcinogens/AtHome/cellular-phones
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