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1、智能手机英语演讲,智能手机英语演讲智能手机英语演讲,Kinds of intelligent mobile phone,How mobile phone develop?,Lets talk about Motorola,Martin Cooper created the first mobile phone,which means the beginning of radio communication.,无线通信,After birth.,1G2G3G4G,1G,Brick,2G,WAP is short of Wireless Application Protocol(无线应用协议).,
2、第一款WAP手机诺基亚 7110,When getting into 2G time,mobile phone can surf the internet!,And most 2G phone use GSM or CDMA standard.,3G,internet speed of 3G phone is obviously faster than that of 2G and can make it to 150KB/s.,International standard of 3G are:WCDMA of Europe,CDMA2000 of America and TD-SCDMA o
3、f China.,4G,4G means the faster speed than 3G and can reach 4Mb/s!And the standards are TD-LTEand FDD-LTE.,How many system of those intelligent phone?,technology,With the development of science and technology,more and more people use mobile phone that is more intelligent and useful.Now you can not o
4、nly surf the internet but also play games or search map or do shopping.Of course when call your friends you neednt look for phone book instead of calling his name So many incredible things!,The difference between Feature phone and Smart phone,Someone maybe think common phone could do the convenient
5、things,thats right,but,非智能手机,（功能手机）,The more convenient and useful phone?,Although Feature phone is more stable than Smart phone and have much more electricity,like this,The advantage of Smart phone,掌上电脑,Has better performanceIs fast in runningHas standalone operating system(OS)and can be updateHas big touch screenHas big parts of function of PDA(Personal Digital Assistant)Users can install third-party softwares,In other words,1+12!,Future smart phone,Though iphone 6 came out,but various concept stands for the future of smart phone,2020/11/5,19,谢谢观赏！,
