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Random thought... before there was sw eating the world there was (analog) electricity eating the world. So many 20th c sensors basically produce a voltage signal. You don’t need an arduino etc to read them. An analog multimeter or oscilloscope will do. Any writing on this?
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Weren’t op amps in the 60s? I recall this was what started Analog Devices just like the full wave rectifier was one of HPs first products. I see op amps as the next wave to just making technology smaller, more convenient, easier to build, etc.
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