What does 'Cache Purging' mean?

Cache purging is an essential feature of many software programs that helps to optimize the overall performance of the application. It refers to the process of clearing or invalidating the cached data, which is information that is stored in a temporary storage area to enable quick retrieval of frequently used data. Cache purging is a crucial mechanism for preventing outdated or irrelevant data from continuously occupying space in the cache and potentially affecting application performance. As a result, cache purging allows for improved speed and efficiency of the software