Everything is built on top of other stuff. Surely a micro processor is just a product made using chip fabrication technology? Which itself is just a commoditi

Everything is built on top of other stuff. Surely a micro processor is just a product made using chip fabrication technology? Which itself is just a commoditised production method based on other... err... technologies. You could pick another word at some arbitrary level, but I'm not sure it's a particularly useful distinction to draw.