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Glossary

Cache

Caches come in many types, but they all work the same way: they store information where you can get to it fast. A Web browser cache stores the pages, graphics, sounds, and URLs of online places you visit on your hard drive; that way, when you go back to the page, everything doesn't have to be downloaded all over again. Since disk access is much faster than Internet access, this speeds things up. Of course, disk access is slower than RAM access, so there's also disk caching, which stores information you might need from your hard disk in faster RAM.

Sometimes cache can create problems when you are viewing web sites. For instance if your caches settings are too high in your browser you may be viewing outdated pages of websites as it will pull information from your hard drive instead of refreshing the web site's current pages.

For instructions on how to empty your browsers cache, please visit our Tutorial section.