dominates the microprocessor architecture business, as its licensees have shipped 150 billion chips to date and are shipping 50 billion more in the next two years. But is challenging that business with an open source ecosystem of its own, based on a new kind of processor architecture that was created by academics and is royalty free.

This month, 2,000 engineers attended the second annual RISC-V Summit in San Jose, California. The leaders of the effort, including nonprofit RISC-V Foundation CEO Calista Redmond, said they see billions of cores shipping in the future.

RISC-V started in 2010 at the University of California at Berkeley Par Lab Project, which needed an instruction set architecture that was simple, efficient, and extensible and had no constraints on sharing

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