This is briefly touched upon in Neal Stephenson's "Seveneves", after The Cataclysm happens humanity regrows most technology, but for the most part ICs are limited to 8086-level devices as even thousands of years later they are unable to reach the level of semiconductor technology before it. The amount of technology and power in something as small as a cell phone or lowly raspberry pi is nothing short of a marvel, particularly at their price points.