RISC(Reduced Instruction Set Computer) - Simple instructions - Fixed length - Uniform decode - Few addressing modes ex) ARM, MIPS CiSC(Complex Instruction Set Computer) - Complex instructions - Variable length - Non-uniform decode - Many addressing modes ex) Intel RISC vs CISC RISC CISC 코드 길이 ↑ ↓ 복잡도 ↓ ↑ 시간 ↓ ↑