MOBILE PHONE HISTORY

Presented by

Duangta

Today’s communications industrial would not be what it is

1947 AT& T Bell Labs introduce the Idea of cellular communication

1970’s AT&T Labs and Motorola : Incorporate the phone Technology into portable devices.

Joel Engel Richard Frenkiel

How to……invented

Early Years

The First Cell phone(1973)

Motorola Dyna Tac 8000 He is considered the inventor of the

first portable Hand set and the first person to

make a call on a portable cell phone in April in 1973 Features only Talk And listen

Name: Motorola Dyna-TacSize: 9 x 5 x 1.75 inchesWeight: 2.5 poundsDisplay: NoneNumber of Circuit Boards: 30Talk time: 35 minutesRecharge Time: 10 hoursFeatures: Talk, listen

Launch of mobile phone

Dr. Martin Cooper

A Generation of Mobile Phones

G1 ( First Generation )

Analog System Hexagon cell base station

2 G (Second Generation) GSM System SMS Some Function

3 G (Third Generation)