While the benefits of using computing in the clouds are well known, its adoption is hindered by security concerns.

使用云计算的好处已经是众所周知的，然而安全方面的考虑是采用它的障碍。

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Public computing clouds are open to anyone who wants to sign up and use them.

公共计算云面向任何希望登录到其中并使用它们的用户。

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The mainframe may well find a new home in corporate computing clouds, the pools of data-processing capacity many firms are building.

大型机会在可以进行云计算的企业计算机市场找到自己的一席之地，很多公司都在建立自己的数据处理库。

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Looking at this list, it should be obvious that are as many different clouds in the computing world as there are in the sky.

FORBES: Sorting Out the Clouds

Thus, there are plain-vanilla clouds that deliver basic offsite computing, all of the way up to powerful and secure clouds loaded with extra services.

FORBES: Rethinking the Cloud

In an article in IEEE Internet Computing, Cloud Computing: The Limits of Public Clouds for Business Applications, I point out several problems the public cloud vendors will have to solve to support business computing.

FORBES: "Cloud Don'ts": Advice to Avoid Wasted Investment