the mobilе phone this is our life this is our future
TRANSCRIPT
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The mobilе phone
• This is our life• This is our
future
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The first mobile phone was invented in research laboratory «Bell Laboratories» in
1947 for automobile.
History
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Dyna-Tac In 1973 the engineer Martin Cooper, the
employee of company Motorola, has made the first bell from mobile
phone. The cellular telephone referred
to Dyna-Tac. It was a phone weighting
about 1 kg and 200 grammes, height - 25 centimeters.
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• 1. The display • 2. The
microphone• 3. The keys• 4. The case of
phone• 5. The chamber
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The instruction• Keep phone in the places inaccessible
to children and pets• Use a phone accurately and cautiously• Do not use phone near other electronic
devices• Use only recommended accessories• Do not use phone while driving the
automobile• Trust repairing of a phone only to the
qualified experts
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Thanks for your
attention !!!
The author Kolosova T.
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The phones of the future !