Memory is a fundamental cognitive process that enables individuals to encode, store, and retrieve information when required. In cognitive psychology, memory is studied as a system involving different stages and types of information processing. One important classification of memory is based on the distinction between primary memory and secondary memory. These concepts explain how information is temporarily maintained and how it becomes a more permanent part of our knowledge system. Primary memory refers to the short-term storage system that holds information for a brief period while it is actively being used. It is often associated with short-term memory and working memory. Primary memory has limited capacity and duration, meaning that it can retain only a small amount of information at a time and for a few seconds unless the information is actively rehearsed. According to George A. Miller’s research, the capacity of short-term memory is approximately seven items, although later studies suggested that the capacity may vary depending on the type of information and the individual’s cognitive strategies. The main function of primary memory is to maintain information that