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Mobile Phones_David_JoelA
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David Dávila Ruiz Joel Armengol Rubio B – 51
Transcript of Mobile Phones_David_JoelA
David Dávila Ruiz Joel Armengol Rubio
B – 51
• Introduction
• First Generation (1G)
• Second Generation (2G)
• Second Generation (2.5G)
• Third Generation (3G)
• Fourth Generation (4)
• Late 40s
• Very large
• Heavy
• 1981 • NMT 450
• 1990
•GSM
• SMS
•MMS
• Internet
• GPRS
• Downloading files
They are
currently
the best
mobile
phones