The photo here is one that appeared in a book published by Harper & Brothers in 1962, entitled '1975: And the Changes to Come', written by Arnold B. Barach and the Kiplinger Washington Editors, predicting how technology would change our lives in 1975.
The caption associated with this particular photo is: "Film Based Teaching Machine. Student pushes one of four buttons to give answers and his score appears on paper slip at upper right. Teaching machines, expected to boom in the next decade, usually operate on the principal of repetition until the pupil understands. They aim to speed up the learning process and relieve teacher of much paper work in the classroom. "
I think we might have achieved this one? Although, I can't remember - have we decided that repetition exercises are good or bad, or does it depend ...?