This chapter provides a brief explanation of some more technical aspects of Web browser use. An understanding of these topics will help you to use the Web more effectively.
Most Web browsers make use of something called a cache .
This greatly increases the speed with which the browser can display these previously-visited pages. Sometimes, the browser's cache can be a disadvantage. This causes the browser to check whether the page has changed on the remote server. If it has changed, then a new copy is downloaded from the server. If not, then the cached version is displayed again.