Cookies are, let's call them type of files you during your visit to the website it does create them and save the data. So your next visit provided a much easier and faster browsing the site. There are two types of cookies, namely:
Temporary cookies are created only temporary and record data during your browsing. When you close your browser, the cookies are deleted. Persistent cookies remain on your computer or other device and are activated each time you visit the site.
On the side of use:
In your browser to turn off cookies at any time, but we do not recommend it. Information about the settings for the cookies in different browsers can be found at the links below: