this post was submitted on 20 Feb 2025
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Today I learned

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TIL optical telegraphs (at the turn of the 19th century) had many features now commonplace in modern networks, including control characters, routing, error control, flow control, message priority, and (en.wikipedia.org)
submitted 2 days ago by Coldmoon@sh.itjust.works to c/todayilearned@lemmy.ml
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[โ€“] davidgro@lemmy.world 12 points 1 day ago (1 children)

... And truncating messages that were too long?