Reduced Instruction Set Computing (RISC) is a computer architecture design that simplifies the instruction set of a processor. By using a smaller number of simple instructions, RISC allows for faster execution and more efficient use of the CPU. This design contrasts with Complex Instruction Set Computing (CISC), which has a larger set of more complex instructions. RISC architectures typically emphasize a load/store model, where data is moved between memory and registers using specific instructions. This approach can lead to improved performance and easier optimization by compilers. Popular examples of RISC architectures include ARM and MIPS.