A cookie is a small file, typically of letters and numbers, downloaded on to a device when the user accesses certain websites. Cookies are then sent back to originating website on each subsequent visit. Cookies are useful because they allow a website to recognise a user’s device. The Regulations apply to cookies and also to similar technologies for storing information. This could include, for example, Local Shared Objects.
To find out lots more about cookies in general and the different types, take a look at cookiepedia – the leading information resource all about cookies.
Each brower has its specific way to enable or disable cookies. Here you may find how to disable cookies → seven ways to disable cookies
The Cookie Law is a piece of privacy legislation that requires websites to get consent from visitors to store or retrieve any information on a computer, smartphone or tablet. It was designed to protect online privacy, by making consumers aware of how information about them is collected and used online, and give them a choice to allow it or not.