CELL PHONES

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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