The output device might be a hard disk, for instance, and writing to the hard disk involved moving the write head around and waiting for the platter to spin to the right place.

输出设备可能是硬盘，例如，和写作涉及的硬盘将写头，等待盘片旋转到正确的地方。

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The output device might be a hard disk, for instance, and writing to the hard disk involved moving the write head around and waiting for the platter to spin to the right place.

让我们考虑硬盘作为输出设备。 写入硬盘内存相比非常缓慢。 是更快的写一大块的数据一次硬盘然后编写大量的小块。 缓冲区用于积累这些块。

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And while he offered to snap Ms. Homsey's photo with her camera after serving her birthday cookie platter, she says it'd have been smarter to film the celebration with his own device and offer to send a clip.

WSJ: Tips for Waiters