RISC Architecture, or Reduced Instruction Set Computer architecture, is a design philosophy that simplifies the instruction set of a computer's processor. This approach allows for faster execution of instructions by using a smaller number of simple instructions, which can be executed in a single clock cycle. The focus is on optimizing performance through efficient use of hardware resources. In RISC systems, most instructions are of a fixed length, making it easier for the processor to decode and execute them quickly. This contrasts with CISC Architecture, or Complex Instruction Set Computer architecture, which has a larger set of more complex instructions. The simplicity of RISC leads to improved performance and energy efficiency in modern computing devices.