New ask Hacker News story: Ask HN: How libraries managed borrowed books before computers?

Ask HN: How libraries managed borrowed books before computers?
3 by marcodiego | 0 comments on Hacker News.
I'm always curious about how computerless system works. They are sometimes very ingenious and also give some ideas on how to optimize for an specific purpose. Although I rented many things in early 90's before pc's became common place, I never learned how the borrowing process is done. Anyone knows how video rental stores and libraries worked before computers:

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