電信革命ppt演示

1、The telecommunications The telecommunications RevolutionRevolution公共管理學(xué)院行管131 teammate：黃奧龍 徐慧 劉漫露 周傳奇 任尚 王安銀The origin of the ancient communication The origin of the ancient communication technology technology Teasing the Princes with Beacon Fires Everyone should be heard of teasing the princes with

2、 beacon fires, the stupid king zhou in order to see their own love princess Bao si a laugh, ordered his servant to light beacon tower, far see rushed to the various vassals. Bao si looked at these vassals in a sorry plight,she sneered the king, but king zhou thought Bao si laughing really, so lighte

3、d beacon tower for many times. in the end, the enemy really attacked the capital, vassals no longer believe in the king, the king was killed by the enemy finally. From this story, we can know the ancient method of passing information is kindling the becaon. U Since the 19th century, a short 100 year

4、s, the development of communication technology is changing and developing rapidly, such as the ancients of the dream has been realized, but also appeared a lot of people cant even think about new technology, the following is the communication technology development history profile. Communication tec

5、hnology development history profile conclusionUA c c o r d i n g t o v a r i o u s c o m m u n i c a t i o n i n communication in the history of the development of position, role and influence on the human, our group for t h e p a s t 1 0 0 y e a r s o f development history of communications technol

6、ogy on the general summary, think there are 10 kinds of technique are worth memorial .The Telegraph CableUAlex Morse invented the telegraph cable,Wire marked a new epoch in human communication. wireless telegraphyUMarconi invented wireless telegraphy, wireless cable for human communication technolog

7、y has opened up a new field. Carrier communication（載波通信）UCarrier communication. The emergence of carrier communication changed a route can only transmit phone situation all the way, is a physical medium transmit multi-channel audio telephone signal become possible。 .（載波通信。載波通信的出現(xiàn)，改變了一條線路只能傳送一路電話的局面，

8、是一個物理介質(zhì)上傳送多路音頻電話信號成為可能）The TVUThe TV. TV greatly changed peoples life, make the transmission and exchange of information from a single sound development to the real-time image .The electronic computerUThe electronic computer. The electronic computer is recognized as the greatest invention in the 20t

9、h century, it promotes the development of all kinds of science and technology. Integrated circuit(集成電路）U Integrated circuit. Integrated circuit provides all kinds of electronic equipments with high speed, small and powerful heartand make the information transmission ability and the ability to reach

10、a new level .Optical fiber communication（光纖通信）UOptical fiber communication. The invention of the optical fiber, make people find a truly able to take on task information infrastructure platform for constructing the future of the medium of communication. Satellite communicationsUSatellite communications. Satellite communications bring humans into space communication era .Cellular mobile communication(蜂窩移動通信）UCellular mobile communication. Cellular mobile communication provides an unprecedented for people, convenient and quick means