The Central Processing Unit (CPU) is the brain of your computer, responsible for processing instructions and making decisions.Random Access Memory (RAM) stores temporary data during computer operations, enabling smoother multitasking with more RAM.The Hard Drive (HDD) or Solid State Drive (SSD) stores files, software, and the operating system of your computer.The Graphics Processing Unit (GPU) is essential for rendering images, videos, and games, particularly for gaming, video editing, and 3D modeling.