Most people might not realize it yet, but we are already feeling the impact of what's known as the third wave of computing. In small but significant ways it is helping us live safer, healthier, and more secure lives. If you drive a 2014 Mercedes Benz, for example, an "intelligent" system endeavors to keep you from hitting a pedestrian. A farmer in Nigeria relies on weather sensors that communicate with his mobile device. Forgot your medication? A new pill bottle from Adhere Tech reminds you via text or automated phone messages that it's time to take a pill.