Given this paragraph about computers, what is the first RISC system?

Context: Michael J. Flynn views the first RISC system as the IBM 801 design, begun in 1975 by John Cocke and completed in 1980. The 801 developed out of an effort to build a 24-bit high-speed processor to use as the basis for a digital telephone switch. To reach their goal of switching 1 million calls per hour they calculated that the CPU required performance on the order of 12 million instructions per second, compared to their fastest mainframe machine of the time, the 370/168, which performed at 3.5 MIPS.

Answer: The first RISC system was the IBM 801, started in 1975 and completed in 1980.