While your personal computer only keeps one copy of a file, large-scale services like Facebook rely on what are called content delivery networks to manage data and distribution.

虽然你的个人电脑只能保存一个文件的一个副本，但像 Facebook 这样的大型服务项目，则会依赖于所谓的内容分发网络来管理数据和分发。

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When faced with this idea, the temptation is to assume that you need some sort of distribution or replication mechanism that will copy the key/value pairs between the machines.

有了这个想法后，还有一种想当然是需要使用某种分配或复制机制来在机器之间复制键/值对。

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Success in the free-copy world is not derived from the skills of distribution since the Great copy Machine in the Sky takes care of that.

在免费拷贝的世界里无法靠沿用分销技能而取得成功，因为天幕之下的巨大拷贝机(互联网)已经能做到了。

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Ever since, your correspondent has kept a copy of this clever Linux distribution ( gOS 3.1 Gadgets is the latest version) on one of his office machines to remind him of what, with luck, the future could look like.

ECONOMIST: Google goes in search of an instant operating system

He disagreed that this was good for competition in the books markets and said that the "economics of the e-book industry is quite different to the print industry" because costs are the same up until first copy but after that e-books incur none of costs of printing and distribution.

BBC: US has 'strong case' against Apple's e-books