Thirty years ago the landscape of personal computing was vastly different. That is to say, it hardly existed. Footage of the Mac's initial unveil is out there, but this second, more polished run—a presentation for the Boston Computer Society—hasn't been available since the event itself back on January 30th 1984.
The content of the presentation is largely the same, but the execution has a whole different kind of swagger. Besides these were users, not just shareholders. You can hop over to Time's Techland to learn more about the context of this second announcement. Or just sit back and absorb the history. [Time Techland via Engadget]