CELL PHONES =) By : Ja’Nae Cole Technology pd 11 September 21,2010

 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

 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

 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

NNumbers 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

OOriginated from a radio EEach city is divided up into cells that allow frequencies to be transferred. EEach cell has 56 voice channels ((meaning 56 phones can be used at once)

=/=)  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

 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

   /OtherCarcinogens/AtHome/cellular-phones /OtherCarcinogens/AtHome/cellular-phones