a test to ensure that a response is not computer generated.
Captcha is a type of challenge-response test used in computing to ensure that the response is not generated by a computer. The process usually involves one computer (a server) asking a user to complete a simple test which the computer is able to generate … see full wiki
I'll set the scene up for you: You're eager to start posting on an awesome new website that sounds really interesting (...say, Lunch.com! *) You get through all the registration steps- name, email, password, password verification, yada yada...and then you see this weird blurry smudge at the bottom of the page. It looks like this: Orr, if you're really having a bad day, it could look as convoluted as this: … more
90% of the time I have no problem reading it. However, once I got what looked like the starting set-up of the board game Othello. . . if you don't know what that is, it's four circles arranged in a square--one kitty-corner set black, the other white. . . I took a pic with my phone, if I ever figure out how to get that here I'll show you. But do tell, how do I type that?!?