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CAPTCHA stands for "Completely Automated PublicTuring test to tell Computers and Humans Apart".
Its purpose is to prevent web sites where users can post content from being flooded with spam. Not all CAPTCHAs are equally effective, though. Programs exist that can decipher a couple of different CAPTCHAs without human interaction. By being pictures with text, they make it harder for automated bots to read and enter text to break the security. They can also ask questions based on photos that again a computer would not be able to answer, but a human can.
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∙ 7y ago
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Is it called Capcha or CAPTCHA?
The correct spelling is Captcha. You can get more information about Captcha's at the Wikipedia. Once on the website, type "Captcha" into the search field at the top of the page and press enter to bring up the information.
How do you make a captcha?
You may buy captcha from all kind of services or create one by yourself using some open source captcha. Check the link below for a list of open source captcha services.
Why do you have to do the CAPTCHA thing as a WikiGuide?
WikiGuides do not have the captcha because of the nature of their work in the community.
Why do websites ask to copy code on screen?
this code which could be combined with letters and/or numbers is called CAPTCHA. A CAPTCHA is used to determine if the user is a human and to prevent automated scripts from attempting to attack the site.
Do you have to enter a CAPTCHA on WikiAnswers when you enter a question?
No, you do not have to enter a CAPTCHA when you ask a question.And when you answer a question?To answer a question, however, you have to enter the CAPTCHA if you are not signed in to the site.
How does captcha wrk?
it doenst
How do you do captcha entry?
You pay for a service that pays for people (cheap human resource) to pass the captcha tests. It is that simple.
Can't create Yahoo Mail account CAPTCHA won't load?
i have tried multy captcha but it wont work
Why wont steam captcha work?
The CAPTCHA may not work because you may have typed it in wrong, or it may be a "faulty" CAPTCHA. If you're having trouble then try using a different browser, or reload the page.
Do you have to enter a CAPTCHA on WikiAnswers when you answer a question?
Not If You Are Signed InSigned-in users do not have to enter a CAPTCHA when answering questions, but anonymous IP addresses do.
How much speed of Internet is required for CAPTCHA entry?
I am doing this captcha entry, and it requires minimum of 512kbps speed of Internet..........
How are CAPTCHA words concocted?
Captcha words are sometimes pulled from old documents that are scanned and are being digitized through Captchas.
