POCKET PC （简称PPC）直译：口袋电脑，是基于微软的Windows Mobile操作系统的一种掌上设备。
口袋电脑的视窗系统是很难被追踪的，而这一款恰好拥有两块小屏幕。
Windows on a tablet is too hard to navigate, and this one has two smallish screens.
当我只将Libretto视作一个有意思的概念时，我并没有发现标准口袋电脑的实用价值。
While I found the Libretto an interesting concept, I didn't see the benefit of it over a standard tablet computer.
正像我们现在所熟知的那样，Windows 7是口袋电脑操作系统的糟糕选择，该系统伤害了Libretto作为便携电脑的实用性。
Windows 7 is, as we know very well by now, a poor choice for a tablet operating system, one which hurts the Libretto's practical use as a tablet.
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