Slide Rule for Sale, Slightly Used.

Growing up in the Jetson generation, I am amazed at the number of computer-driven devices once imagined by cartoonists that are now in common usage today. With Dick Tracy-style watch phones strapped to our wrists and automated vacuums plotting a course of cleanliness through our homes, we speak to voice-activated home-control gizmos to learn everything from stock prices to tomorrow's estimated snowfall to how long it will take to pick up the kids from soccer in rush hour traffic. From impossible to fantastic to essential, all in the blink of an eye.