What GDPR Means To The User
For the user these changes mean a more secure environment. The user should now see some sort of 'cookie' opt-in function on virtually every website they visit. Should they decide to opt out they should leave the website. Should they decide to opt-in data may be collected about the user and/or computer.
Website's have used cookies since the early days of the Internet. Meaning computer cookies are nothing new, just now more appearent. A website publisher must now state which data collectors they have and how the information is used.
For instance Google AdSense is a very popular advertiser used by millions of websites around the world. Hence Google is taking these requirements very seriously indeed.
Computer cookies like real life cookies are typically small consumable morsels. Cookies are the mechanism that brings convenience to the Internet. When you fill in a form or take part in a contest you have to input certain personal information (general data)
Opting out of cookie usage can severely inhibit a website's functionality. You may not be able to communicate with the webmaster, fill in any forms or use certain pages.