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CAPTCHA

From Wiktionary, the free dictionary
See also:captchaandCaptcha

English

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A typical representation of a CAPTCHA

Alternative forms

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Etymology

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Coined by a team of researchers atCarnegie Mellon University in 2000 as a loose acronym of“completelyautomatedpublicTuring test to tellcomputers andhumansapart”.

Pronunciation

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Noun

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CAPTCHA (pluralCAPTCHAs)

  1. (computing, Internet) Acomputerizedtestrequiring thehuman user toperform ataskdeemed to bedifficult toautomate, such asentering adisplayedseries ofdistortedcharacters ordescribingimages, todemonstrate that they are ahuman and not acomputer 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 typicalCAPTCHA puzzles have[…]
    • 2014, Laura Fitton, Anum Hussain, Brittany Leaning,Twitter For Dummies, John Wiley & Sons,→ISBN, page24:
      ACAPTCHA is a quick check to make sure that an actual person, rather than a computer program, is using the website. Web applications useCAPTCHA[…]

Derived terms

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Translations

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computerized test

See also

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Further reading

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Dutch

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Etymology

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Borrowed from English.

Noun

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CAPTCHA m (pluralCAPTCHA's,nodiminutive)

  1. alternativeletter-case form ofcaptcha
Retrieved from "https://en.wiktionary.org/w/index.php?title=CAPTCHA&oldid=89238425"
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