Whats cookies? and how do they work.

 

What is cookies? 

•       Cookies are the term used in the information and technology sector to keep you logged into sites so that you don't have to enter ID and password every time you visit the website.
•     Webmasters can use these cookies for monitoring the activity of Internet users.
•      Some sites use third-party cookie to track your Web habits for marketing purposes.
•     There are two different type of cookies, Magic cookies & HTTP cookies.

Further more below vedio explained how it really works.

Is there advantages in cookies?

Yes there are advantages as well as disadvantages, below I have mentioned some key advantages as well as the disadvantages. 

The advantages are

•        User friendly
•        Availability for long period of time
•        Convenience that it remembers where you left and passwords
•        Marketing
•        Ability to configure it
•        Easy implementation

       The disadvantages are

•        Browser impacts as they accumulate if not cleared
•        Security risks
•       Limitation as most cookies are able to store 4Kb
•        Privacy concerns
•        Manual disabling
•      Encoding information 

How ever you call them, they are an important part of e-commerce and Web browsing. Cookies can be used for many things such as authenticating logins to Web sites and storing preferences for the Web sites, and they can be used for tracking where a user goes, whether within a Web site or between Web sites.