You have got a ticket to a computer fair, but you now find that you are unable to go.

我有一张计算机展销会的入场券，但是突然有事去不了。

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It looks like something you might find at the bottom of the bargain bin at a computer fair, but this device is being touted as an exciting new way to train the next generation of computer programers.

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By sorting through its own data, LinkedIn knows that computer engineers migrate back and forth between New York and San Francisco a fair amount.

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At the fair she is showing a multi-touch table which works like a computer screen.

ECONOMIST: Innovation