I believe the cookies are used to send info to your computers requests since your pc can't handle all the requests so, cookies handle them instead; Let's say there're no cookies, you go into a website and log in. In the second visit, you'll have to relogin again 'cause you have no cookies.
Cookies are used for:
1.Session management (What I said above)
2.Personalization: Let's say you want to buy a fumo, you're always going to be given cookies and they will store your data based on your view, or part of the website and there comes personalization of your sessions.
3.Tracking, Authentication: Almost the same as 2 but with memory of "how many time you x the y.
There're a lot about cookies so, I suggest looking into article to get more info.
That's why. (Pardon if I miss the meaning of your question)
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Cookies are used for:
1.Session management (What I said above)
2.Personalization: Let's say you want to buy a fumo, you're always going to be given cookies and they will store your data based on your view, or part of the website and there comes personalization of your sessions.
3.Tracking, Authentication: Almost the same as 2 but with memory of "how many time you x the y.
There're a lot about cookies so, I suggest looking into article to get more info.
That's why. (Pardon if I miss the meaning of your question)