How to Know Cookie

<p><div style="text-align: center;"> <img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiy2F8knGnQMblhKS_dhqqv7r7WFhuMvBcRsQFMOzvpCvfT3y2QOjs1q43qLfI-NFlKu4ydRouBe-EFk_-K153t67Es9lqcrqjAZVsCR_czyDEGj803_lg_QCFNurNh6ZGl9Z6KAvxt1xKc/s320/cookie.png" style="font-family: "Helvetica Neue", Arial, Helvetica, sans-serif;" /></div> <span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><b><span style="color: #990000;"><br /></span></b></span><div> <span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><b><span style="color: #990000;">What is a cookie?</span></b></span></div> <div> <span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span></div> <div> <span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">A cookie is a piece of information in the form of a very small text file that is placed on an internet user's hard drive. It is generated by a web page server, which is basically the computer that operates a web site. The information the cookie contains is set by the server and it can be used by that server whenever the user visits the site. A cookie can be thought of as an internet user's identification card, which tell a web site when the user has returned.<br /> <br /><b>What does a cookie look like?</b><br />Below is the content of a typical cookie. This one is from the Hotmail service and has the filename jss@hotmail.msn.txt (.txt is the standard filename extension for text files):<br /><br /><span style="color: #999999;">HMP1 1 hotmail.msn.com/ 0 1715191808 <br />32107852 1236821008 29449527</span> * <br /><br />The codes will only make sense to Microsoft's MSN Hotmail servers.<br /><br /><b>History of cookies</b><br /><br />Cookies for the internet were originally developed in 1995 by the Netscape Communications Corporation. The word 'cookie' comes from 'magic cookie,' a term in programming languages for a piece of information shared between co-operating pieces of software. The choice of the word cookie appears to come from the American tradition of giving and sharing edible cookies.</span></div> <div> <span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span></div> <div> <span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><b>What is the purpose of cookies?</b><br />Cookies make the interaction between users and web sites faster and easier. Without cookies, it would be very difficult for a web site to allow a visitor to fill up a shopping cart or to remember the user's preferences or registration details for a future visit.<br /> Web sites use cookies mainly because they save time and make the browsing experience more efficient and enjoyable. Web sites often use cookies for the purposes of collecting demographic information about their users.</span></div> <div> <span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span></div> <div> <span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">Cookies enable web sites to monitor their users' web surfing habits and profile them for marketing purposes (for example, to find out which products or services they are interested in and send them targeted advertisements)</span></div> <div> <span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span></div> <div> <span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><b>Are there different types of cookies?</b><br />Cookies come in different flavours:<br /></span></div> <div> <span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><span style="color: #666666;"><b>>> Session, or transient cookies</b></span><br />Cookies that are stored in the computer's memory only during a user's browsing session and are automatically deleted from the user's computer when the browser is closed.</span></div> <div> <span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span></div> <div> <span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">These cookies usually store a session ID that is not personally identifiable to users, allowing the user to move from page to page without having to log-in repeatedly. They are widely used by commercial web sites (for example, to keep track of items that a consumer has added to a shopping cart).</span></div> <div> <span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span></div> <div> <span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">Session cookies are never written on the hard drive and they do not collect any information from the user's computer. Session cookies expire at the end of the user's browser session and can also become no longer accessible after the session has been inactive for a specified length of time, usually 20 minutes.</span></div> <div> <span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /><b><span style="color: #666666;">>> Permanent, persistent, or stored cookies</span></b><br />Cookies that are stored on the user's computer and are not deleted when the browser is closed. Permanent cookies can retain user preferences for a particular web site, allowing those preferences to be used in future browsing sessions.</span></div> <div> <span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /></span></div> <div> <span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;">Permanent cookies can be used to identify individual users, so they may be used by web sites to analyse users' surfing behaviour within the web site. These cookies can also be used to provide information about numbers of visitors, the average time spent on a particular page and generally the performance of the web site. They are usually configured to keep track of users for a prolonged period of time, in some cases many years into the future.</span></div> <div> <span style="font-family: Helvetica Neue, Arial, Helvetica, sans-serif;"><br /><b><span style="color: #666666;">>> Flash cookies</span></b><br />If you have Adobe Flash installed on your computer (most computers do), small files may be stored on your computer by websites that contain Flash media, such as video clips. These files are known as Local Shared Objects (LSOs) or Flash cookies. They can be used for the same purposes as regular cookies (properly called HTTP cookies).<br /><br />Flash cookies can also back up the data that is stored in a regular cookie. When you delete cookies using your browser controls, your Flash cookies are not affected. So a website that served a cookie to you may recognise you on your next visit if it backed up its now-deleted cookie data to a Flash cookie.</span></div> </p>

What is a cookie? A cookie is a piece of information in the form of a very small text file that is placed on an internet user's h...