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Meanings and definitions for CAPTCHA
What does CAPTCHA stand for? What does CAPTCHA mean?
- A CAPTCHA (, a contrived acronym for "Completely Automated Public Turing test to tell Computers and Humans Apart") is a type of challenge–response test used in computing to determine whether or not the user is human.The term was coined in 2003 by Luis von Ahn, Manuel Blum, Nicholas J. Hopper, and John Langford.
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