https://www.recode.net/2018/4/25/17277220/john-hennessy-dave-patterson-risc-processors-turing-award-disruption-ibm-dec-kara-swisher-podcast

Dave Patterson and John Hennessy were told that their idea was “going to destroy the computing industry.”

The warning was right. In the 1970s and into the 1980s, the industry was dominated on the hardware side by two companies: IBM and DEC. Patterson and Hennessy’s development of RISC, a more efficient computer processor found today in billions of devices, completely upended the established order.