The Little Calculator That Could

In Silicon Valley, where you’re only as good as your next big thing, Hewlett-Packard’s 12c financial calculator is the rare exception: a gadget that’s basically unchanged even as it approaches its 30th birthday on Sept. 16. As one of only two calculators allowed on the Chartered Financial Analyst exam, it’s still a moneymaker for HP.

    Before it's here, it's on the Bloomberg Terminal.
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