Another dusty gem's emerged from the vintage gold mine that is AT&T's Tech Channel archive, and this one's packed full of useful information and some classic Jetsons-style animation. The Thinking Machines pits man against computer to explain how the things reason, and it does so with a soundtrack that's straight out of, well, 1968. Unsurprisingly, the film's populated by giant, button-laden switchboards, early computer graphics, ladies sporting beehives, and gents rocking unfortunate facial hair, but if that doesn't do it for you, it also offers genuine pearls like this: "Best of all, they never get bored. Like other machines, they can do the same monotonous chores all day long without complaining." Someone should tell that to the disgruntled Roomba residing in our hall closet. Check out the full video in all its dated glory after the break.