Google – CAPTCHA

Acronym for Completely Automated Public Turing test to tell Computers and Humans Apart.  A test that asks the user to read distorted text and type it in a text box.  It was developed by Carnegie Mellon University to ensure that the response is generated by a person and not a bot or a computer program.  To learn more, visit http://www.captcha.net/.


Source: Google.
Image: Unsplash.

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