Even if you don't know what CAPTCHA stands for, you've more than likely run into them while browsing the Internet. It is actually a test to differentiate between humans and computers. In this clip from the folks at Butterscotch, you'll learn how to respond to CAPTCHA challenges when, for example, signing up for a website. For more information, including detailed, step-by-step instructions, and to get started asserting your own humanity, watch this home-computing how-to.
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