CAPTCHA
CAPTCHA is short for “Completely Automated Public Turing test to tell Computers and Humans Apart". So, are you a robot? Try not to overthink it.
The Turing test was introduced in 1950 by British mathematician and computer science pioneer Alan Turing in his landmark paper “Computing Machinery and Intelligence”. Rather than asking “Can machines think?”, Turing proposed a more practical question: “Can a machine imitate a human well …




