Re: What's a computer cookie?

Posted by Randal Penman, Alberta, C on February 05, 2005 at 16:39:36 from (161.184.23.225):

In Reply to: What's a computer cookie? posted by Spidey 94 on February 05, 2005 at 16:33:32:

A computer cookie is properly known as an: HTTP cookie, which is defined as:

A system invented by Netscape to allow a web server to send a web browser a packet of information that will be sent back by the browser each time it accesses the same server. Cookies can contain any arbitrary information the server chooses to put in them and are used to maintain state between HTTP transactions, which are otherwise stateless. Typically this is used to authenticate or identify a registered user of a web site without requiring them to sign in again every time they access it. Other uses are, e.g. maintaining a "shopping basket" of goods you have selected to purchase during a session at a site, site personalisation (presenting different pages to different users) or tracking which pages a user has visited on a site, e.g. for marketing purposes.

The browser limits the size of each cookie and the number each server can store. This prevents a malicious site consuming lots of disk space. The only information that cookies can return to the server is what that same server previously sent out. The main privacy concern is that, by default, you do not know when a site has sent or received a cookie so you are not necessarily aware that it has identified you as a returning user, though most reputable sites make this obvious by displaying your user name on the page.

After using a shared login, e.g. in an Internet cafe, you should remove all cookies to prevent the browser identifying the next user as you if they happen to visit the same sites.

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Can you tell me the horsepower of a McCormick Deering WD-9 tractor?

Thanks very much if you can.

Randal

Follow Ups:

• Re: What's a computer cookie? Nebraska Cowman 17:50:43 02/05/05 (1)
  • Re: What's a computer cookie? Randal Penman, Alberta, C 16:01:33 02/06/05 (0)

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