Cache (computing) - Wikipedia
In computing, a cache is a hardware or software component that stores data so that future requests for that data can be served faster; the data stored in a cache might be the result of an earlier computation or a copy of data stored elsewhere.
Cache - Browser. Reference information
The browser cache is a folder with copies of data from pages that you have opened. Usually, the cache stores page elements that are unlikely to have changed in the time between your two requests, such...