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Telex began in Germany as a research and development program in 1926 that became an operational teleprinter service in 1933. The service, operated by the German Reichspost [3] had a speed of 50 baud, which is approximately 66 words per minute. Soon after telex services were developed by other nations.
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Beginning in the 1980s, the ability to conduct high-speed digital communication—particularly fax transmission—over nonleased dial-up telephone lines led to a decline in the use of telex. Western Union sold its Telex network to AT&T in 1990, before declaring bankruptcy in 1993.
- The Editors of Encyclopaedia Britannica
By the 1980s, over 3 million telex machines worldwide spun endlessly, facilitating the modern fast-paced exchange of commerce, news and state relations. For the first half of the 20th century, no technology held more disruptive capacity to radically connect the planet.
Telex starts as a way to distribute military messages, but soon becomes a world-wide network of both official and commercial text messaging that will persist in some countries into the 2000s. Telex uses teleprinters, which date back to the 1910s for use in telegraphy.
Telex machines first performed rotary-telephone-style pulse dialing, and then sent baudot code. This "type A" telex routing functionally automated message routing. The first wide-coverage telex network was implemented in Germany during the 1930s.
The British, in 1854 during the Crimean War, seemed to have been the first to use the electric telegraph for military applications. But it was undoubtedly during the Civil War in the United States that this new means of communication was first used to facilitate battle operations on a large scale.
Teleprinter, any of various telegraphic instruments that transmit and receive printed messages and data via telephone cables or radio relay systems. Teleprinters became the most common telegraphic instruments shortly after entering commercial use in the 1920s. They were used by operators in local.
