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Telegraph code - Wikipedia
A telegraph code is one of the character encodings used to transmit information by telegraphy. Morse code is the best-known such code. Telegraphy usually refers to the electrical telegraph, but telegraph systems using the optical telegraph were in use before that. A code consists of a number of code points, … See more
Optical telegraph codes
Prior to the electrical telegraph, a widely used method of building national telegraph networks was the optical telegraph consisting of a chain … See moreThe teleprinter was invented in 1915. This is a printing telegraph with a typewriter-like keyboard on which the operator types the message. Nevertheless, See more
Comparison of flag codes
Table 1 notes
1. ^ Left and right are the message sender's left and right. The neutral position is with the flag … See moreBaudot code
Early printing telegraphs continued to use Morse code, but the operator no longer sent the dots and dashes directly with a single key. Instead they operated a piano keyboard with the characters to be sent marked on each … See moreIn 1931, the International Code of Signals, originally created for ship communication by signalling using flags, was expanded by adding a collection of … See more
• Beauchamp, Ken, History of Telegraphy, IET, 2001 ISBN 0852967926.
• Bouchet, Olivier, Wireless Optical Communications, Wiley, 2012 See moreWikipedia text under CC-BY-SA license Morse Code & Telegraph: Invention & Samuel Morse
WebNov 9, 2009 · The telegraph and Morse code revolutionized long-distance communication after their invention in the 1800s by Samuel Morse and other inventors.
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WebMar 29, 2024 · telegraph, any device or system that allows the transmission of information by coded signal over distance. Many telegraphic systems have been used over the centuries, but the term is …
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WebTelegraphy (from the Greek words tele = far and graphein = write) is the long-distance transmission of written messages without physical transport of letters. Originally, it involved changes that could be observed from a …
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