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...

Chinese telegraph code, or Chinese commercial code, is a four-digit character encoding enabling the use of Chinese characters in electrical telegraph messages...

was the predecessor to the International Telegraph Alphabet No. 2 (ITA2), the most common teleprinter code in use before ASCII. Each character in the...

telegraph was slower to develop in France due to the established optical telegraph system, but an electrical telegraph was put into use with a code compatible...

Instructograph Keyer Morse code abbreviations Morse code mnemonics NATO phonetic alphabet Radio code Tap code Telegraph key Wabun code Wireless telegraphy Until...

stand on one of the telegraph arms (code 001-721), and a message asking an adjacent station to confirm that they could see him do it (code 001-723). By 1809...

the first electric telegraph line, based on International Morse code, was set up in 1845. The last signal from a Chappe telegraph was sent in 1854. In...

communication, using a modified form of Morse's code that had been developed for German railways. Electrical telegraphs were used by the emerging railway companies...

codes were required for ASCII. ITA2 was in turn based on Baudot code, the 5-bit telegraph code Émile Baudot invented in 1870 and patented in 1874. The committee...

some commercial use of Morse code was via machinery, it was often used as a manual code, generated by hand on a telegraph key and decipherable by ear,...

is a telegraph signaling method in which one or more particular frequencies correspond to each desired signaling condition of a telegraph code. The transition...

experience of generations of telegraph operators. In the introduction to the 1907 edition of his book, "The Phillips Code: A Thoroughly Tested Method of...

1859. The code was designed to reduce bandwidth consumption over telegraph lines, thus speeding transmissions by utilizing a numerical code system for...

characters in Morse code. A telegraph operator would translate the sounds into characters representing the telegraph message. Telegraph networks, used from...

A telegraph key, clacker, tapper or morse key is a specialized electrical switch used by a trained operator to transmit text messages in Morse code in...

1845 – 28 March 1903), French telegraph engineer and inventor of the first means of digital communication Baudot code, was one of the pioneers of telecommunications...

Telegraph covertly helped in the recruitment of code-breakers for Bletchley Park. The ability to solve The Telegraph's crossword in under 12 minutes was considered...

for a telegraph code suitable for multiple Indian languages have been made as early as 1948, shortly after independence. See Chinese telegraph code. Equivalent...

the return to International Code. Kana in Iroha order. Millikin, Donald (September 1942). "The Japanese Morse Telegraph Code". QST. Vol. XXVI, no. 9. American...

uses plain text instead of code Optical telegraph, sending visual signals with pivoting shutters in towers Hydraulic telegraph, based on the displacement...

's 2nd area code". CBC News. 14 June 2011. "CRTC approves new 474 area code for Saskatchewan | CTV News". 23 July 2018. AT&T, Telegraph to Telephone...

quietly revolutionary crime drama". The Daily Telegraph. Retrieved 19 May 2025. Mangan, Lucy (18 May 2025). "Code of Silence review – Rose Ayling-Ellis is...

American area codes established in October 1947 by the American Telephone and Telegraph Company (AT&T). After the State of New Jersey with area code 201, the...

reduced, leading to more complex codes. The change was motivated by the economic need to reduce the number of telegraph wires used, which was related to...

A needle telegraph is an electrical telegraph that uses indicating needles moved electromagnetically as its means of displaying messages. It is one of...

symbolic codes. Electrical telegraphy used conducting wires to send messages, often incorporating a telegram service to deliver the telegraphed communication...

agencies entered characters using a long, complicated list of Chinese telegraph codes, which assigned different numbers to each character. During the early...

The Q-code is a standardised collection of three-letter codes that each start with the letter "Q". It is an operating signal initially developed for commercial...

message. An example of this is the commercial telegraph code which was used to shorten long telegraph messages which resulted from entering into commercial...

telegraphic codes were a commercial telegraph code used to shorten the telegraphic messages sent between the stations and offices of the railway. The codes listed...