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If I press the "8" button on my elevator, how does it actually carry the elevator car up to the eighth floor and how does it "know" that I want to go to that floor? What is the mechanism?It is a vintage 1920s building and the elevator is really old. It has a metal gate you have to pull shut for the thing to even move. There is NO computer controlling this. So what is controlling the movement and telling it which floors to go to?
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