When you view a web page, for example, a copy of the page is loaded into the video memory of your computer (or phone, or iPad) before the device can display it on the screen.

例如当你查看一个网页时，在设备显示内容之前，页面的副本就加载到你的计算机(或手机，或iPad)的内存。

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More important, the iPad 2 also has video mirroring, ensuring that once you have connected the device to the HDMI adapter, the iPad will display the contents of its screen on an external monitor.

更重要的是，iPad 2还拥有视频镜像功能，可以确保一旦连接到HDMI适配器，iPad 2将会在外部监视器上显示它上面的内容。

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These dynamic-link libraries call routines in device drivers for the video display and any printers you may have set up.

这些动态连接库调用设备驱动程序中的程序用于视频显示和你可能已经安装的任何打印机。

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Phones, of course, are also being equipped with larger, higher quality screens that display video better than ever, right on the device.

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The iPad was clearly a more versatile device: it would provide color and full audio and video, while the Kindle could display only black-and-white text.

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