A 컴파일러 is a special program that translates code written in a high-level programming language, like C++ or Java, into machine code that a computer can understand. This process allows developers to write code in a more human-readable format, making it easier to create software applications. The 컴파일러 performs several tasks, including syntax analysis, semantic analysis, and optimization. It checks the code for errors and optimizes it for better performance before generating the final machine code. This ensures that the software runs efficiently on the target hardware.