Often referred to as the cache, the Temporary Internet Files folder contains a kind of travel record of the items you have seen, heard, or downloaded from the Web, including images, sounds, Web pages, even cookies. Typically these items are stored in the Temporary Internet Files folder. Storing these files in your cache can make browsing the Web faster because it usually takes your computer less time to display a Web page when it can call up some of the page's elements or even the entire page from your local Temporary Internet Files folder.
Every time you browse the internet, you are storing information on your computer, on your hard drive. There are good reasons for this, but over time it impedes your computer by eating up potentially significant hard drive space and defragmenting your hard drive
Clearing Your Browser's Cache:
All those files stored in your cache take up space, so from time to time, you may want to clear out the files stored in your cache to free up some space on your computer. This is called clearing the cache.
NOTE: Deleting everything can free hard disk space, solve problems with your web browser, and provide some additional privacy, but it might inconvenience you by removing information you might need on the Internet. For example, you will have to retype passwords that were previously stored on your computer.
To clear your cache: