Take a look at Dell, one efficient computer hardware operator.

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Since they flow directly to the user's computer, the site operator has no idea what is going on.

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Since the data flow directly to the user's computer, the Web site operator has no idea what is going on.

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But the computer would work only if the operator could interact with it without destroying the superposition.

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Nadeem Kashmiri, a data operator, was charged with hacking into the computer system which allegedly led to money being stolen from customer accounts.

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In San Diego, former airline-shuttle operator Conan Cott, the husband of U.S. Navy computer-systems and organization specialist Michele Cott, has been caring for the couple's 4-year-old twins since they were born.

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On a recent afternoon, camera operator Doug Winglewich sat at a console and watched several dozen incoming video feeds plus a computer linked to the county 911 dispatcher.

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Once the computer has learnt what's what, it can recognise and compare smells, or can give its human operator the chance to do so.

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