手机的发展历史英文版
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SamBaidu Nhomakorabeaung SPH-M100
Siemens S45
Benefon Esc!
Windows Mobile
Symbian OS
BlackBerry
The Third generation is TD-SCDMA
Nokia 9000 Communicator
1. The recording radio 2. Video 3. Music play MP3 MP4 versatility 4. Hd camera 5. JAVA all sorts of function game downloads
the Evolution of
Between 1983-2011
In 1983
invented by
MOTOROLA
The first cellphone In china ,we call it
brick.It weights 1.13 kilogram. The first generation of analog signals.
The second generation digital signal GSM. GSM is stand for Global System for Mobile Communications. This was the first mass-produced GSM phone.
Motorola StarTAC