A cache is a temporary storage location that stores frequently accessed data or information in order to speed up access to it. It is used by computer systems, web browsers, and applications to improve performance and reduce the amount of time it takes to access data.
In computer architecture, there are several types of caches such as CPU cache, disk cache, and memory cache. The CPU cache stores frequently used instructions and data so that they can be quickly accessed by the processor. The disk cache stores recently used files in memory to reduce the time it takes to load them from the hard drive. Memory caches store frequently accessed data in RAM for faster retrieval.
Caching is an important technique used by web servers to speed up website loading times. Web pages are stored in a cache on the server so that when a user requests the page, it can be delivered quickly without having to generate it again from scratch.
Overall, caching improves system performance by reducing latency and increasing throughput.
