The military drove the development of the earliest computers such as the ENIAC, seeking faster, more accurate ways to perform mathematical and scientific calculations.

CNN: Genesis of the computer

By lining up thousands of these bits, a computer can perform complicated mathematical calculations, and even use that ability to do tasks like downloading a Web page and displaying it on a screen.

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Our report on PFG, available here, has detailed appendices for you to see how we perform all calculations, including NOPAT, NOPAT margin, invested capital, economic earnings and discounted cash flows.

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