戴尔还提供10g的在线存储空间，免费使用一年。
The Dell also comes with a free year of 10 gigabytes of online backup.
微软的SkyDrive提供多达25GB的在线存储空间，足够存储你所有的关键文件、档案、照片、视频和音乐。
Microsoft's SkyDrive offers up to 25GB of online storage, more than enough for all your crucial files, documents, photos, videos and music.
只需要有限的磁盘存储空间，因为第一阶段只有有限的在线课程。
Only limited disk storage capacity is needed, because only a limited number of online courses will be available in the first phase.
这一模式早期的一个例子是在线的电子邮件，你可以免费获得一定的存储空间，当你想要更多空间时，则需要付费。
An early example of this model was online email, where you got a certain amount of storage for free and had to pay for more (see more about this, though, in the section on when free is dangerous).
这一模式早期的一个例子是在线的电子邮件，你可以免费获得一定的存储空间，当你想要更多空间时，则需要付费。
An early example of this model was online email, where you got a certain amount of storage for free and had to pay for more (see more about this, though, in the section on when free is dangerous).
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