CAPTCHA
English
editAlternative forms
editEtymology
editCoined 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
editNoun
editCAPTCHA (plural CAPTCHAs)
- (computing, Internet) 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 […]
Derived terms
edit- CRAPTCHA (humorous, derogatory, vulgar)
Translations
editcomputerized test
See also
editFurther reading
editDutch
editEtymology
editBorrowed from English.
Noun
editCAPTCHA m (plural CAPTCHA's)
- Alternative letter-case form of captcha