1975 Live Demonstration of the APL Programming Language
Imperial College London · Demo · 28 min · 2013 · YouTube title: APL demonstration 1975
Why it's here
Recommended as a charming, from-zero introduction to APL and a window into early interactive computing.
What it covers
A 1975 live demonstration of the APL language by Imperial College professor Bob Spence, showing a REPL on a modified typewriter terminal and APL's appeal to non-programmers.