INTRODUCTION TO CYBERNETICS
Introduction to Cybernetics is a 1966 Soviet-origin technical primer issued by the US Air Force Foreign Technology Division and the Defense Technical Information Center, aimed at engineers and programmers working on automata and digital computing. Its three diagrams are schematic: a relay-style network of logic gates and delay elements, a branching multi-channel circuit diagram, and a shaded phase-plane graph with trajectories, all in plain black linework that a designer could borrow for abstract technical graphics.
