'Old economy' stocks look expensive and software screams cheap. Is that enough to end the rotation?

Some sectors in the S&P 500 have valuations out of step with their history. That doesn't mean the shakeup will stop soon.

Old Computer Hard Drives Were The Size Of Your Washing Machine - Here's Why

Before flash drives and SSDs, storage came in giant cabinets with swappable packs. Here's what was inside, and why it took up ...