The step-by-step, mechanical logic of old pinball machines
Overview
Technology Connections takes apart the step-by-step electromechanical logic of a 1970s pinball machine. He shows how relays, steppers and switches track state and score without electronics.
On Hacker News
HN recommends it as an in-depth look at mechanical logic, and uses it as an analogy for state machines and biological instruction processing.
Topics
Sources
Video by Technology Connections, played through YouTube.
Data and selection notes
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