Supercomputers a hidden power center of Silicon Valley

Silicon Valley is famed for spawning the desktop, mobile and cloud computing revolutions. What is less well known is that it's one of the nerve centers for building the world's fastest number-crunchers.

Supreme Court allows challenge to Colorado Internet tax law

A unanimous Supreme Court ruled Tuesday that federal courts can hear a dispute over Colorado's Internet tax law. One justice suggested it was time to reconsider the ban on state collection of sales taxes from companies outside ...

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