手机发展史英文版.ppt

The Development Of Mobile Phone Unconsciously, mobile phone has come into our life for nearly 30 years. As peoples living standard improved, mobile phone has evolved from a luxury to a now very popular consumer electronic product. Recalling the process of mobile phone development, in terms of shape or function has enormous change. Mobile phone’s development has also changed again and again. Today it has a variety of functions and shapes. Mobile now is more than a communication tool. It is a necessity in our modern life. October 13, 1983, Ameritech company’s executives Bob Barnett used the first commercial mobile phone to make a call. It’s model is DynaTAC 8000X .It was manufactured by Motorola. It weighs 2 pounds and it just can work half an hour.But the price of it up to $ 3,500. This is the prototype of what we often call Big Brother The worlds first mobile phone —DynaTAC 8000X The first phone in Chinese mobile phone market The first mobile phone entered the Chinese market in 1987. The model of it is Motorola 3200.It’s style and design are nearly the same as DynaTAC 8000X. It was very popular as Big Brother” at that time. Motorola 3200 The first flip type mobile phone Motorola 8900 Motorola 8900 commonly known as the “ brick”. It entered China in the 1980s. As the belt cover, you would not accidentally touched a button and set off signal. Then Motorola launched the Motorola 9900 which is smaller and lighter than 8900. It used to be very popular with women white-collar. But it use of nickel- cadmium batteries the same as 8900 which power is too small. It has been leading the fashion until 1995. The highest price of it had reached 20000. The first folding mobile phone The word “palm pilot” has an unshakable position in the heart of many first generation mobile phone users in China. It completely changed the people’s traditional image