Amazon's come a long way since its humble beginnings as an online book store. It sells everything from groceries to its own Kindle and tablet hardware, runs streaming services complete with original shows, and has a huge cloud-computing business among other interests. And now Amazon's started pushing its own line of processors, plunging its finger into yet another pie. You won't find its ARM-based "Alpine" chips among the T-shirts and homeware on Amazon's online store, of course. They are being sold directly to manufacturers and service providers through subsidiary Annapurna Labs, a chip designer Amazon acquired early last year.