Before we could do it all on a computer, multi-media presentations were put together with a mixture of photographic slides, a script, and audio tapes that contained not only the taped narration but cues to advance the slide tray. The best systems did this automatically with the inclusion of magnetic blips that “talked” to the slide projector to make it advance by itself…it was magic!
We recently got this kit into the lab for boxing. As someone who once created presentations like this, I can tell you Power Point is so much easier to use (some would say too easy…blinking cartoons flying in from stage left, anyone?).