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Back around 1987, I drove a rental car with a digital speedometer. Horrible. And at the time, I was designing power plant operator interfaces for a computer control system. The only "analog" we had was a bar graph. It was better than nothing. Number and bar graph.
When I was in India doing the final checkout of one of the control systems, I worked with an old-time plant operator and we re-designed the displays to make it easier for a regular operator to use. Quick visual to see if everything is OK. In the old days, they would put pencil marks on the meters to show "nominal". I built those into the displays.
I sent the as built displays back to "Headquarters" to be used around the world. A couple of years later, I was over at the physical plant at Stanford U, and I re-worked a lot of the displays.
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James
The pessimist complains about the wind; the optimist expects it to change; the engineer adjusts the sails.- William Arthur Ward (1921-1994)
Red-beard for President, 2020
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