Saw this in a friends lab just now. Anyone know what it’s talking about?

It was actually the book cover that caught my eye:

Full reference:
Steinbuch, K. (1971). Automat und Mensch: 4. neubearbeitete Auflage. Springer-Verlag: Berlin, Germany.
It says »Character recognition« at the top. Looks like an OCR system for figures. There are 12 sensors and 3 conditions (1 Ziffer wird geschnitten – figure is crossed, 2 Ziffer wird nicht geschnitten – figure is not crossed, 3 Sonde is unbrauchbar für Erkennung dieser Ziffer – sensor is not suitable to recognize this figure.)
Captured from web.archive.org on 1 Nov 2011. view this capture