CAPTCHA

CAPTCHA is the acronym for Completely Automated Public Turing test to tell Computers and Humans Apart.

What is the acronym CAPTCHA? Completely Automated Public Turing test to tell Computers and Humans Apart

Completely Automated Public Turing test to tell Computers and Humans Apart

A test to tell Computers and Humans Apart. It is a challenge-response test used in computing to determine whether the user is human. CAPTCHAs are designed to prevent automated software (bots) from performing actions that degrade a given system’s service quality, such as submitting forms on websites, creating accounts, or spamming.

CAPTCHAs typically require users to perform tasks that are easy for humans but challenging for computers. These tasks can include deciphering distorted text, recognizing objects in images, or solving simple mathematical problems. The primary goal is to ensure that the response is not generated by a computer, thus protecting websites and online services from abuse and spam while maintaining accessibility for human users.

  • Abbreviation: CAPTCHA
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