CAPTCHA

by Barbara J. Feldman on February 15, 2005

Ever wonder why so many websites ask you to enter squiggly, distorted pass codes? They are using captcha to verify your humanity. A captcha is an automated test that humans can pass, but computers can not. To learn more, read the definitions from Webopedia or Wikipedia. Or dive into Carnegie Mellon’s Captcha Project.

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Cite This Page

Feldman, Barbara. "CAPTCHA." Surfnetkids. Feldman Publishing. 15 Feb. 2005. Web. 29 Aug. 2014. <http://www.surfnetkids.com/tech/667/captcha/ >.