Which type of memory has an essentially unlimited capacity?

Long-term memory is characterized by its essentially unlimited capacity, which allows individuals to store vast amounts of information over extended periods, even a lifetime. This type of memory is not only capable of holding a significant amount of data but also has the ability to organize and integrate this information, making retrieval possible when needed. In contrast, echoic and iconic memories are types of sensory memory with very brief durations. Short-term memory, while capable of retaining information for a short time, is also limited in capacity, typically holding about seven items at once. Thus, long-term memory stands out because of its extensive capacity and duration, enabling a rich storage of experiences and knowledge.