The component of a computer responsible for rendering images and video is the graphics processing unit (GPU). The GPU accelerates the rendering of visual elements by executing complex calculations required for graphics rendering. It plays a crucial role in gaming, video editing, and 3D modeling by providing real-time graphics performance. Modern GPUs also support parallel processing, enabling multiple tasks to be executed simultaneously, which significantly enhances computational efficiency. For high-performance applications, dedicated GPUs are often preferred over integrated ones.