Baddeley and Hitch are renowned psychologists known for their work on the model of working memory. In 1974, they proposed a multi-component model that includes the central executive, phonological loop, visuospatial sketchpad, and later, the episodic buffer. This model suggests that working memory is not a single store but consists of different systems that handle various types of information. Their research emphasized the importance of the central executive in coordinating tasks and managing cognitive resources. The phonological loop processes verbal information, while the visuospatial sketchpad deals with visual and spatial data. This framework has significantly influenced our understanding of memory and cognition.