Least Recently Used (LRU) algorithm

The Least Recently Used (LRU) algorithm is a strategy for managing limited cache space by removing the data that hasn’t been accessed for the longest time. When new data needs to be stored and the cache is full, LRU eliminates the item that was last used furthest back in time, assuming that data not accessed recently is less likely to be needed soon. This approach helps keep the most relevant and frequently accessed information readily available, improving overall system efficiency. It's commonly used in web browsers, memory management, and other applications where quick data retrieval is essential.