What are Cookies?
Cookies are small files which are stored on a user's computer. They are designed to hold a modest amount of data specific to a particular client and website, and can be accessed either by the web server or the client computer. This allows the server to deliver a page tailored to a particular user, or the page itself can contain some script which is aware of the data in the cookie and so is able to carry information from one visit to the website (or related site) to the next.¹
How do I manage & remove cookies?
If you would like to restrict, block or remove cookies you can do this through your web browser settings. The "Help" function within your web browser will tell you what you need to do. You also have the option to opt out of cookies (to learn how please visit www.aboutcookies.org). Please note that certain areas of our websites can only be accessed by having cookies enabled and you should be aware that disabling cookies may prevent you from accessing some of our content and enjoying the full features of our website.¹ What Are Cookies? from http://www.whatarecookies.com