CAPTCHA
See also: captcha and Captcha
English
A typical representation of a CAPTCHA
Alternative forms
- captcha, Captcha
Etymology
Coined by a team of researchers at Carnegie Mellon University in 2000 as a loose acronym of “completely automated public Turing test to tell computers and humans apart”.
Pronunciation
- IPA(key): /ˈkæp.t͡ʃə/
- Homophone: capture
Noun
CAPTCHA (plural CAPTCHAs)
- A computerized test requiring the human user to perform a task deemed to be difficult to automate, such as entering a displayed series of distorted characters or describing images, to demonstrate that they are a human and not a computer program.
- 2011, Dafydd Stuttard; Marcus Pinto, The Web Application Hacker's Handbook: Finding and Exploiting Security Flaws, John Wiley & Sons, →ISBN:
- CAPTCHA puzzles are intended to be easy for a human to solve but difficult for a computer. Because of the monetary value to spammers of circumventing these controls, an arms race has occurred in which typical CAPTCHA puzzles have […]
- 2014, Laura Fitton; Anum Hussain; Brittany Leaning, Twitter For Dummies, John Wiley & Sons, →ISBN, page 24:
- A CAPTCHA is a quick check to make sure that an actual person, rather than a computer program, is using the website. Web applications use CAPTCHA […]
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Derived terms
- CRAPTCHA (humorous, derogatory, vulgar)
Translations
computerized test
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See also
- Turing test
Further reading
CAPTCHA on Wikipedia.Wikipedia
Dutch
Etymology
Borrowed from English.
Noun
CAPTCHA m (plural CAPTCHA's)
- Alternative letter-case form of captcha