当时凭着这篇3脚猫的文章，我居然也通过了笔记，进入了一轮又一轮的复试，最终我进入了FiberHome工作，一直工作到现在，呵呵。
所以，今天在煎蛋上看到这篇介绍第1代模拟通信（1G）历史的文章，我觉得挺有意思，特此分享！
原文地址：http://jandan.net/2008/02/20/cellphone-timeline.html
* 公元前490年，一个叫Pheidippides的哥们从马拉松跑到雅典传达胜利的消息。仅仅为了把这个消息传递40几公里，活活把这哥们累毙了。
* 1876，第一次电话通信成功。贝尔叔叔拿着电话就说了一句：“老沃(Watson)啊，你过来一下，要见见你。”那时候，电话里每个字都听得清清楚楚，虽然100多年后，满大街人抓着手机玩命喊：“啥？听不清！信号太差！”
* 1895，Marconi同志将无线通信实用化，发展了商业无线广播。
* 1906，Reginald Aubrey Fessenden演示了第一部无线电电话。
* 1908，Nathan B. Stubblefield在美国第一个申请了无线电话的专利。
* 1926，坐在汉堡-柏林列车头等舱的富人们已经开始玩无线电话了。
* 1939，二战开打，德国人开始大规模在坦克集群中使用无线电电话。
* 1945，德国投降，希特勒至死也没有机会用上Windows智能手机，iphone, ps3...
* 1947，贝尔实验室提出利用三向天线构建六角形网格状手机网络（就是蜂窝状啦），不过失败了，为啥？忒理论了。
* 1954，在电影《Sabrina》中使用了真正意义上的手机。顺便说一下，Sabrina是女主角的名字，由pp的奥黛丽赫本同学扮演。
* 1956，第一个全自动手机运营系统（MTA）在瑞典由爱立信建成，不过那时候一部手机都重达40公斤。打手机，那绝对是体力活啊。
* 1965，MTA升级到MTB，由于使用了晶体管，手机瘦身成功，减至9公斤。
* 1970，手机终于可以在基站之间自由漫游了。。。
* 1971，0G时代开始。第一个成功的商业手机网络在芬兰建成。
* 1973，摩托的Martin Cooper博士走在纽约大街上的时候，用摩托的第一个手机原型DynaTAC给AT&T贝尔实验室的头Joel Engel打了一个电话。从此，1G时代开始了。
* 1978，又是贝尔那帮人，在芝加哥建成了第一个实验性商业手机网络。
* 1982，诺基亚终于登场啦，发布了他们的第一款手机Mobira Senator。FCC也批准了基于模拟信号的高级手机服务(AMPS)，频段在824-894兆赫之间。
* 1983，摩托不甘落后，推出了美国的第一个手机产品DynaTAC 8000x。还记得MTB吗，在这一年挂了，居然还搞到600个用户。
* 1990，FCC批准了数字手机服务，模拟手机网络进入末代王朝。
* 1991，诺基亚实现第一个商用GSM通话。2G和数字时代来临。
* 1993，第一条短信！yeah~~1996，摩托的StarTAC登场（谁用过？）
* 2000，3G网络出现
* 2002，FCC决定要关闭模拟电话网络
* 2003，GPRS和EDGE开始应用。2.5G时代开始。
* 2007，iPhone发布！虽然依然运行于2.5G网络之上，但增加了Wifi传输。此时3G手机已经满世界都是了。
* 2008年2月20日，谁还在用模拟手机？
原文：
The Analog Cellphone Timeline
As of today, the analog cellphone is no more. Here's the complete timeline of its development, since Greece in 490BC to February 18, 2008, the day in which networks are no longer obligated to provide with analog cellphone coverage. Click to see the huge, high definition version.
(Click the image above for a huge 2000-pixel wide version of the timeline)
490 BC
Pheidippides ran from Marathon to Athens to transmit the news of the victory over the Persians.
Signal was really bad back then: he died on the spot after delivering the message, according to Plutarch.
1876
First successful telephone transmission. Graham Bell says "Mr. Watson, come here, I want to see you" and Watson understands each word clearly. A century later, people would be "What? Say that again? Watson? Watson?" over cellphone lines.
1895
Marconi puts Tesla wireless communications discoveries to practice, develops commercial radio.
1906
Reginald Aubrey Fessenden demonstrates first wireless radio telephone.
1908
First US Patent on a wireless phone awarded to Nathan B. Stubblefield.
1926
Radio telephony starts to be used in the First Class of the Hamburg-Berlin train line.
1939
World War II starts. Germans start using radio phones in tanks on a large scale.
1945
Germany surrenders. Hitler kills himself, he never used a Windows Mobile Phone, (or a Playstation 3 or a HD DVD player).
1947
Bell Labs proposes hexagonal cells for mobile phones, with the three-sided antenna we know today. It sucked, because it was all theoretical.
1954
Linus Larrabee (Humphrey Bogart) uses a real mobile phone from his car in Billy Wilder's Sabrina (played by Audrey Hepburn).
1956
First fully automatic mobile phone (Mobiltelefonisystem A or MTA) system launched in Sweden by Ericsson. Each handset, pictured above, was 90 pounds (40 kg.)
1965
Ericsson's MTB is launched. This time, the headset is just 20 pounds (9 kg.) thanks to the use of transistors.
1970
Automatic "call handoff" system is invented, allowing mobile phones to move through several cell areas during a single conversation without loss of conversation.
1971
ARP, the first successful commercial cellphone network, is launched in Finland. You couldn't move from cell to cell seamlessly.
It was 0G (Zero G.)
1973
April 3, 1973: Motorola's Dr. Martin Cooper calls Joel Engel, head of research at AT&T's Bell Labs, while walking in New York City using the first Motorola DynaTAC prototype. The beginning of 1G networks.
1978
Bell launches first trial commercial cellular network in Chicago.
1982
Nokia introduces their first cellphone, the analog Mobira Senator. FCC approves the analog-based Advanced Mobile Phone Service (AMPS) and assigns frequencies in the 824-894 MHz band.
1983
Motorola DynaTAC 8000X is the first commercial cellphone available in the US. MTB shuts down, still with 600 clients.
1990
FCC approves the Digital AMPS, the beginning of the end for analog networks.
1991
First commercial GSM call in the world. Done using Nokia hardware. 2G and digital begins.
1993
txt msgng apprs 4 1st time LOL.
1996
Motorola StarTAC debuts.
2000
3G appears.
2002
FCC decides to shut down the analog network.
2003
GPRS and EDGE, technologies for faster (but not too fast) data transfers, launch. It's 2.5G. 3G networks are not available yet.
2007
iPhone launches. Still runs on 2.5G technology, but adds Wi-Fi for data transfer. 3G cellphones start to become ubiquitous.
2008
February 19
Cellphone analog networks can shut down.
