cell phones =) by : ja’nae cole technology pd 11 september 21,2010
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CELL PHONES
=)
By : Ja’Nae ColeTechnology pd 11
September 21,2010
Martin Cooper pioneered Motorola’s research for cellular phones
1973 First phone was the Motorola Could only be used for a hour
Inventor!
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
Past
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
Present
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
More to come?(Future)
Originated from a radio Each city is divided up into cells that allow
frequencies to be transferred. Each cell has 56 voice channels (meaning 56 phones can be used at once)
How it works
Effect on society 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.
Positiveo Cell phones are a tool of
convenienceo Having internet access on cell
phones allows individuals to check items such as airline schedules, sports scores,
weather and traffic conditionso 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?
Areas of Interaction
Bibliography
Pictures
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