One forgets how fast technology has changed over the last thirty years. I bought a computer in 1992 with a 100 Megabyte hard drive. Now I have four Gigabytes of RAM. (Memory is RAM!!).
If you look back at early attempts to work multimedia into music and concerts, kind of occurring with the rise of MTV, you see lasers and projectors and things like that.
If you watch this:
You realize why it was so cool at that time; and still is today.