Mobile Phones_David_JoelA

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Mobile Phones_David_JoelA

  1. 1. David Dávila Ruiz Joel Armengol Rubio B – 51
  2. 2. • Introduction • First Generation (1G) • Second Generation (2G) • Second Generation (2.5G) • Third Generation (3G) • Fourth Generation (4)
  3. 3. • Late 40s • Very large • Heavy
  4. 4. • 1981 • NMT 450
  5. 5. • 1990 •GSM
  6. 6. • SMS •MMS
  7. 7. • Internet • GPRS • Downloading files
  8. 8. They are currently the best mobile phones

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