Telegraphy - Wikipedia
A telegraph is a device for transmitting and receiving messages over long distances, i.e., for telegraphy. The word telegraph alone generally refers to an electrical telegraph. Wireless telegraphy is transmission of messages over radio with telegraphic codes.
Telegraphy in the United States - Wikipedia
Telegraphy facilitated faster and more profitable freight and passenger railway traffic, consolidated financial and commodity markets, sped political news and commentary, and lowered information costs for companies.
Telegraph | Invention, History, & Facts | Britannica
telegraph, any device or system that allows the transmission of information by coded signal over distance.
Morse Code & Telegraph: Invention & Samuel Morse ‑ HISTORY
2009年11月9日 · Developed in the 1830s and 1840s by Samuel Morse and other inventors, the telegraph revolutionized long-distance communication. It worked by transmitting electrical signals over a wire laid...
The History of the Electric Telegraph and Telegraphy - ThoughtCo
2019年10月13日 · The electric telegraph is a now outdated communication system that transmitted electric signals over wires from location to location and then translated into a message. The non-electric telegraph was invented by Claude Chappe in 1794. His system was visual and used semaphore, a flag-based alphabet, and depended on a …
Telegraphy - Simple English Wikipedia, the free encyclopedia
With telegraphy (from the Greek words tele (τηλε) = far and graphein (γραφειν) = write), messages are sent over long distances without any need to physically transport letters. To send messages, a telegraph sends pulses of electricity through wires in a special code .
Development of the telegraph industry - Encyclopedia Britannica
A variant that ultimately became known as the International Morse Code was adopted in 1851 for use on cables, for land telegraph lines except in North America, and later for wireless telegraphy. Except for some minor improvements in 1938, the International Morse Code …
History and Development of the Telegraph -- Telegraphy - Edinformatics
Telegraphy (from the Greek words tele = far away and grapho = write) is the long-distance transmission of written messages without physical transport of letters, originally over wire. Radiotelegraphy or wireless telegraphy transmits messages using radio.
Telegraphy Definition & Meaning - Merriam-Webster
The meaning of TELEGRAPHY is the use or operation of a telegraph apparatus or system for communication.
TELEGRAPHY | English meaning - Cambridge Dictionary
TELEGRAPHY definition: 1. the use of communication systems that work by sending electric signals through wires or by radio…. Learn more.