Cookies are small text files stored on the hard disc of the computer of visitors to the website. They contain information such as the surfer’s language preference, so that he does not have to indicate it again upon a subsequent visit to the website. Some cookies ensure that the website is displayed graphically in a neat fashion, others that a website application works. If you do no want a website to place cookies on your computer, you can set your browser to that effect.
2. How do you block cookies?
You can block cookies by setting your browser accordingly for that purpose:
Internet Explorer: https://support.microsoft.com/en-us/help/17442/windows-internet-explorer-delete-manage-cookies
Bear in mind that when you block cookies certain graphic elements will not appear as nicely, or that you will not be able to use certain applications.