The document discusses working memory and compares it to the multi-store model of memory. It explains that working memory consists of multiple subsystems that process different types of information, unlike the multi-store model which views short-term memory as a single unitary store. The episodic buffer is introduced as an additional storage system in working memory that can integrate information from other sources like long-term memory. Research provides support for the working memory model over the multi-store model in explaining memory tasks and processes in a more detailed way.