I use a website where one can ask a question and expect an answer
after a week or so.
The website owners have experienced some spam. They have now
introduced a safety system so users shall fill in a code - a system
called CAPTCHA.
The system works sometimes - and sometimes not.  It looks to me as if
it depends on which computer I use (I have tried to access from
borrowed computers in three countries).
And now my question:  When the system denies access it gives a message
which ends with: ".....please ensure that you have enabled cookies in
your browser".
Now - please explain what "cookies" are and please explain what I can
possibly do so I can get access ?

Hi! Thanks for the question.

The website Howstuffworks.com provides an easy explanation on what
cookies are and how they work. Please go to this link to get to know
more.

"How Internet Cookies Work"
by Marshall Brain
http://www.howstuffworks.com/cookie.htm/printable


In your next question, in order to access such websites, you must
enable cookies in your browser. Here are a list of instructions on how
to enable cookies according to the type of browser that you have.

How to Allow Cookies
://www.google.com/cookies.html

"Enable Cookies in Firefox"
http://www.firefoxtutor.com/44/enable-cookies/


Search terms used:
how internet cookies work
how to enable cookies

I hope this would help you in your research. Before rating this
answer, please ask for a clarification if you have a question or if
you would need further information.
                                                          
                              
Regards,                              
Easterangel-ga                              
Google Answers Researcher

Thanks this useful answer.
alsinger

Thanks for the kind words and for the tip! :)