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Bar codes go back to 1959, when railroads started using big bar codes on railroad cars. This was called KarTrak.[1] Read failure rate was about 20%, which was t
by Animats 2y ago
Bar codes go back to 1959, when railroads started using big bar codes on railroad cars. This was called KarTrak.[1] Read failure rate was about 20%, which was too high, and the system was abandoned in 1974.
[1] https://en.wikipedia.org/wiki/KarTrak https://en.wikipedia.org/wiki/KarTrak
- ranger_danger 2y agoBar codes were first invented in 1949 when a patent was filed by Norman Woodland, previously of the Manhattan Project, and later IBM. https://en.wikipedia.org/wiki/Norman_Joseph_Woodland?lang=en https://en.wikipedia.org/wiki/Norman_Joseph_Woodland?lang=en