A cookie can be defined as a small text file specific to each user and web browser, being stored on the user's computer.
Cookies serve to store user preferences, help determine the usefulness, interest and number of uses of a website, allowing for faster and more efficient navigation, eliminating the need to repeatedly enter the same information.
Most browsers allow you to view, control, delete and block cookies on a website. However, please be aware that if you delete all existing cookies, any preferences you set will be lost.Learn more about cookies by visiting http://www.aboutcookies.org/ ou http://www.cookiecentral.com/faq/ .
Law 46/2012 (cookies law) (PDF)