The computers would be useful in running stock exchanges, instantly detecting and adjusting for surges in trading.

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In the case of EZ Energy, regulators stormed its offices Sept. 20, seizing computers and files after its stock shot up 150% in a single session.

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Look at how cheap computers and Web connections have launched a revolution in stock-trading prices.

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In a 2011 article for the scholarly journal Science, researchers Martin Hilbert and Priscila Lopez estimated that the entire processing power of the world's stock of general-purpose computers in 2007 more or less equaled that of one human brain (about 6.4 quintillion instructions per second -- the standard measure of computer speed).

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With a background in computers, the cashed-out entrepreneur set up multiple stock screens to identify stocks that would appeal to superstar investors like Warren Buffett, Benjamin Graham, Peter Lynch, Ken Fisher and nearly a dozen more.

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