Human computation

Even so computers can do computational work much faster then a human, they often can do it only for tasks that they had been programmed to do, if this is an unknown for them task, they often don't know how to approach it, human's work is needed in that case, a human has creativity ability, a human is able to resolve a problem that such a person had never seen before.

Amazon Mechanical Turk is an example of online crowdsourcing marketplace for work that requires human's involvement in the computer's tasks.

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