On Saturday, January 16, 2016 at 7:45:44 PM UTC-5, Ken Cito wrote:
On Sat, 16 Jan 2016 16:36:10 -0700, Neill Massello wrote:

No, they're using you to do the OCR on words that stump their software.
You're doing the work that computers won't. But be happy: this means we
won't be terminated by our new machine overlords.

But how do they know what we type in is right?

When they use the 2 image reCAPTCHA system, the first image is one the control, the second
Image is the one they want to figure out.

If you get the control image right, you are in. For the second image, they keep track of what
users enter and use that data to refine their software and/or use the answers in their
digitization of the document. It's explained in more detail he

https://en.wikipedia.org/wiki/ReCAPTCHA