A CAPTCHA or Completely Automated Public Turing test to tell Computers and Humans Apart is basically a kind of test that helps to distinguish a computer from a human being. It is under the trademark of Carnegie Mellon University. You can visit http://www.protectwebform.com/ for detailed information on CAPTCHA.

During an emergency at home when you lose power, a good flashlight is extremely important. And having one that is bright enough can be a necessity, not a luxury. Here is what to look for when shopping for a new flashlight.

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Artificial intelligence, or AI, has come pretty far in the last few years - much more then anyone really expected it would - and yet somehow, we seem to be just as far from truly intelligent systems as we ever were. No doubt, the great author Isaac Asimov would be impressed with what we have managed to accomplish, especially considering how many of his predictions have come true. However, we still haven't got any positronic brains, or thinking machines such as he suggested.

This article explains the issues that surround computer security and suggests ways to avoid problems.