Uses and meaning of CAPTCHA

Asked By manvi 160 points N/A Posted on - 04/23/2011

Hi,

I have questions and I am wondering if anyone could help me about that.

 

"When we fill forms for creating email ids and some other forms we have to enter CAPTCHA".

 

I want to know about this CAPTCHA? Why we use CAPTCHA?

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Answered By jennifer 0 points N/A #87455

Uses and meaning of CAPTCHA

Hi dear,

It’s a very good question that's why we use captcha. But first of all, I would explain to you the term CAPTCHA. CAPTCHA is a short form of: 'Completely' 'Automated' 'Public' 'Turing-test to tell' 'Computers' and 'Humans' 'Apart'. CAPTCHA is a type of "Challenging-response Test" which separates the humans with computers. Captcha's are used to stop automated softwares from executing tasks which degrades the quality of a service, such as spamming , harvesting email addresses, filling out the forms, fake registrations and much more.

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• Posted on - 04/23/2011
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Answered By manvi 160 points N/A #87456

Uses and meaning of CAPTCHA

Okay. But how do CAPTCHA works?

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• Posted on - 04/23/2011
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Answered By jennifer 0 points N/A #87457

Uses and meaning of CAPTCHA

A server computer generates a simple test asking a user to solve it. The user types the letters or digits from a distorted image. The following image explains it in a better way.

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• Posted on - 04/23/2011
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Answered By manvi 160 points N/A #87458

Uses and meaning of CAPTCHA

It means Captchas are very important for the websites having forms. I am making a contact us page in my blog can I add captcha to it?

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• Posted on - 04/23/2011
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Answered By jennifer 0 points N/A #87459

Uses and meaning of CAPTCHA

Yes sure, Captcha codes are provided for free by many websites and can be embedded easily in forms.

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• Posted on - 04/23/2011
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Answered By manvi 160 points N/A #87460

Uses and meaning of CAPTCHA

I embedded a captcha in my blog. It’s amazing. Well. Thanks for the help.

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• Posted on - 04/23/2011
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Answered By meia_20 0 points N/A #87461

Uses and meaning of CAPTCHA

Hello Jennifer,

Wow, I didn't know that's what captcha means and how it works. I did the captcha job before without knowing how it works, your explanation about it is a valuable information that helps me to better understand it. Just want to say good job in explaining it in details. I can definitely say to myself that I am well informed now about Captcha. Kudos to you.

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• Posted on - 03/27/2012
• Question Category: Internet