What is what does cache mean?

In computing, cache refers to a temporary storage area where frequently used data is stored for quick access. This helps to improve the speed and performance of the system by reducing the need to access data from slower sources, such as a hard drive or network. Caching can occur at various levels in the system, such as in the processor, browser, or server, and can be controlled through settings or configuration options. Cache can also be cleared or refreshed to ensure that the most up-to-date data is being accessed. However, caching can also cause issues if outdated data is being used, leading to errors or discrepancies in the system.