What is a cookie ? All about Cookie Define Cookie

All about Cookies.  What is a cookie?

Cookies are usually small text files, given ID tags that are stored on your computer's browser directory or program data subfolders. Cookies are created when you use your browser to visit a website that uses cookies to keep track of your movements within the site, help you resume where you left off, remember your registered login, theme selection, preferences, and other customization functions.

The website stores a corresponding file(with same ID tag)to the one they set in your browser and in this file they can track and keep information on your movements within the site and any information you may have voluntarily given while visiting the website, such as email address.

Cookies are often indispensable for websites that have huge databases, need logins, have customizable themes, other advanced features.

Cookies usually don't contain much information except for the url of the website that created the cookie, the duration of the cookie's abilities and effects, and a random number. Due to the little amount of information a cookie contains, it usually cannot be used to reveal your identity or personally identifying information.However, marketing is becoming increasingly sophisticated and cookies in some cases can be aggressively used to create a profile of your surfing habits.

There are two types of cookies: session cookies and persistent cookies

 Session cookies are created temporarily in your browser's subfolder while you are visiting a website.

Once you leave the site, the session cookie is deleted. On the other hand, persistent cookie files remain in your browser's subfolder and are activated again once you visit the website that created that particular cookie. A persistent cookie remains in the browser's subfolder for the duration period set within the cookie's file.

A cookie is a small file of letters and numbers downloaded on to your computer when you access certain websites. Like virtual door keys, cookies unlock a computer's memory and allow a website to recognise users when they return to a site by opening doors to different content or services. Like a key, a cookie itself does not contain information, but when it is read by a browser it can help a website improve the service delivered.

Cookie files are automatically lodged into the cookie file - the memory of your browser - and each one typically contains:

The name of the server the cookie was sent from

The lifetime of the cookie

A value - usually a randomly generated unique number

The website server which sent the cookie uses this number to recognise you when you return to a site or browse from page to page. Only the server that sent a cookie can read, and therefore use, that cookie.

A cookie is a text-only string of information that a website transfers to the cookie file of the browser on the hard disk of computers so that the website can remember who you are.

A cookie will typically contain the name of the domain from which the cookie has come, the "lifetime" of the cookie, and a value, usually a randomly generated unique number. Two common types of cookies are used on most websites-session cookies, which are temporary cookies that remain in the cookie file of your browser until you leave the site, and persistent cookies, which remain in the cookie file of your browser for much longer (though how long will depend on the lifetime of the specific cookie).

Cookies can help a website to arrange content to match your preferred interests more quickly. Most major websites use cookies. Cookies cannot be used by themselves to identify you

The main purpose of cookies is to identify users and possibly prepare customized Web pages for them. 

When you enter a Web site using cookies, you may be asked to fill out a form providing such information as your name and interests. This information is packaged into a cookie and sent to your Web browser which stores it for later use. The next time you go to the same Web site, your browser will send the cookie to the 

web server.

 The server can use this information to present you with custom Web pages. So, for example, instead of seeing just a generic welcome page you might see a welcome page with your name on it.

Cookies are small files that websites put on your computer hard disk drive when you first visit.

Many websites, including Microsoft's, use cookies. Cookies tell us how often you visit pages, which helps us learn what information interests you. In this way, we can give you more of the content you like and less of the content you don't.

Cookies can help you be more efficient. Have you ever put something in a virtual shopping cart in an online store and then returned a few days later to find that the item is still there? That's an example of

cookies at work.

Cookies let you store preferences and user names, register products and services, and personalize pages.

But if you never register or leave personal information at a site, then the server only knows that someone with your cookie has returned to the website. It doesn't know anything else.