CAPTCHA is often used as a security tool that blocks a computer pretending to be a human from getting into something, like a website. When you log into your favorite game site, you might be asked to identify a series of numbers, letters or objects in an image. That’s a CAPTCHA. The tasks are usually easy for humans, but difficult for computers, so they are great at making sure it’s a human logging on and not a computer.. Make your own CAPTCHA! Choose an image like a cat, a house or a traffic sign and make tricky versions of it.
Computers are listening, responding, recommending, predicting, and learning new things quickly. How do they do that? They do it with the help of artificial intelligence called CAPTCHA, a tool that learns from lots of training data.