The phonological loop holds verbal and auditory information.
The visuospatial sketch pad holds visual and spatial information.
The central executive is where the major work of working memory occurs. The central executive pulls information from long-term memory and coordinates the activity of the phonological loop and visuospatial sketch pad by focusing on specific parts of a task and switching attention from one part to another. One of the main jobs of the central executive is to decide how to divide attention between different tasks.