从传呼机到手机...

QQTBOY

<p>1955 Pager is introduced as a radio communication product in hospitals and factories</p><p>1979 Japan built the first cellular telephone network</p><p>1983 cellular phone networks starts in the US</p><p>1984 Worldwide Internet becomes operational</p><p>1988 First transatlantic optical fiber cable between US and Europe</p><p>1990 electronic beepers became common</p><p>1995 cell phones become widely available</p><p>2002 cell phone supports video and Internet</p><p>2004 Wireless communication supported by many airports, university campus, and other facilities.</p>

zhangzhuang

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