brent Reduced Instruction Set Computer, less Complex.
"RISC microprocessors, or chips, take advantage of the fact that most of the instructions for computer processes are relatively simple and computers are designed to handle those simple instructions extremely quickly. RISC chips streamline and accelerate data processing by minimizing the number of instructions permanently stored in the microprocessor and by relying more on nonresident instruction (i.e., software programs, or code).

Britannica Quiz
Computers and Technology Quiz
In contrast, CISC chips have a large, complex resident instruction set. Therefore, they typically process complex codes more quickly. RISC chips must break the complicated code down into simpler units before they can execute it. Furthermore, software developed for use with RISC computer systems must provide a larger instruction set than software for CISC systems to compensate for the small, simple instructions that are built in."
