IBM has unveiled a computer that's smaller than a grain of rock salt. It has the power of an x86 chip from 1990, according to Mashable, and its transistor count is in the "several hundred" thousand range. That's a far cry from the power of Watson or the company's quantum computing experiments, but you gotta start somewhere. Oh, right: it also works as a data source for blockchain. Meaning, it'll apparently sort provided data with AI and can detect fraud and pilfering, in addition to tracking shipments.