Final answer:
LRU stands for Least Recently Used and it is a caching algorithm commonly used in computer science and data management.
Step-by-step explanation:
LRU stands for Least Recently Used and it is a caching algorithm commonly used in computer science and data management. The LRU algorithm operates on the principle that the least recently used item is the one that is most likely to be replaced or removed.
To understand this concept, let's consider a scenario where a cache is used to store recently accessed web pages. When a user visits a web page, it is stored in the cache. If the cache is full and the user requests a new page, the LRU algorithm will remove the least recently accessed page from the cache to make space for the new page.
This algorithm is based on the assumption that if an item hasn't been recently accessed, it is less likely to be accessed again in the near future. It helps optimize memory usage and improves overall system performance.