Dell ( DELL - news - people ) is said to be a computer company, but its true genius has to do with the individuals who oversee its efficient inventory management, which allows it to sell a product (the computer) on the relative cheap.

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Steve Wozniak had a genius for designing the most efficient computer from the least number of parts.

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Trust me, Mom is not a genius with money, nor does she have a lot of comfort with the computer.

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Mr. Perrottet tells of two authors, Dave Eggers ( A Heartbreaking Work of Staggering Genius) and Nora Ephron ( I Remember Nothing: and Other Reflections), who use a computer program called Freedom that blocks Internet access for up to eight hours.

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