All about CAPTCHAs
photo © 2010 Chris Foley | more info (via: Wylio)
Have you ever wondered about those crazy sets of letters and numbers that some websites prompt you to enter when you fill out a form?
That's a CAPTCHA, and MakeUseOf.com has written a lovely article covering everything you might want to know about CAPTCHAs but were afraid to ask. I learned some fascinating things that I didn't even know I wanted to know!
http://www.makeuseof.com/tag/wanted-captchas-afraid-technology-explained/
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