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Mobile Phone History

Mobile Phone History. Presented by Duangta . How to……invented. Joel Engel. Richard Frenkel. Today’s communications industrial would not be what it is , with out these two persons.

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Mobile Phone History

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  1. MobilePhoneHistory Presented by Duangta

  2. Howto……invented Joel Engel Richard Frenkel Today’s communications industrial would not be what it is , with out these two persons In 1947 AT& T Bell Labs introduce the Idea of cellular communication In 1970’s AT&T Labs and Motorola : Incorporate the phone Technology into portable devices.

  3. Early Years

  4. Launch of mobile phone The first cell phone 1973 Motorola Dyna Tac 8000 Size 9 x 5 x 1.75 inches Weight 2.5 pounds No display , talk time 35 minute Recharge time 10 hours Features: Talk and listen only Dr. Martin Cooper is the inventor of first portable handset and made the first phone call in April 1973

  5. A Generation of Mobile Phones G1 ( First Generation ) Analog System Hexagon cell base station

  6. 2 G (Second Generation) • GSM System • SMS • Some Function

  7. 3 G (Third Generation)

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