原因似乎是社会学方面的：与那些年老的同事相比，伴着电子通信技术成长起来的年轻的工作人员觉得更没什么必要打印文件。

The explanation seems to be sociological: younger workers, who have grown up with electronic communication, feel less need to print documents than their older colleagues.

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三股技术风潮：计算(提高生产力、数据处理)；通信(电子邮件、即时聊天等)；感知(无处不在的感知)。

Three waves of technology: computing (increase productivity, process data), communicating (email, IM, etc.), sensing (sensors embedded across world).

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在这次活动中，来自非传统通信供应商的高管们也作了重要演讲，如亚马逊电子商务网的首席技术官和维京娱乐集团的首席执行官等。

The event keynotes included executives from non-traditional communications providers, such as the CTO of online retailer Amazon and the CEO of Virgin Entertainment Group.

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