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  2. Telegraph code - Wikipedia

    en.wikipedia.org/wiki/Telegraph_code

    The second division was a code book of 94 pages with 94 entries on each page. A code point was assigned for each number up to 94. Thus, only two symbols needed to be sent to transmit an entire sentence – the page and line numbers of the code book, compared to four symbols using the ten-symbol code. In 1799, three additional divisions were added.

  3. List of typographical symbols and punctuation marks

    en.wikipedia.org/wiki/List_of_typographical...

    Astronomical symbolsSymbols in astronomy; Chemical symbol – Abbreviations used in chemistry; Chinese punctuation – Punctuation used with Chinese characters; Currency symbolSymbol used to represent a monetary currency's name; Diacritic – Modifier mark added to a letter (accent marks etc.)

  4. Baudot code - Wikipedia

    en.wikipedia.org/wiki/Baudot_code

    Baudot developed his first multiplexed telegraph in 1872 [3] [4] and patented it in 1874. [4] [5] In 1876, he changed from a six-bit code to a five-bit code, [4] as suggested by Carl Friedrich Gauss and Wilhelm Weber in 1834, [3] [6] with equal on and off intervals, which allowed for transmission of the Roman alphabet, and included punctuation and control signals.

  5. Telegraphy - Wikipedia

    en.wikipedia.org/wiki/Telegraphy

    Western Union telegram (1930) Western Union telegram sent to President Dwight Eisenhower wishing him a speedy recovery from his heart attack on Sept 26, 1955. A telegram service is a company or public entity that delivers telegraphed messages directly to the recipient. Telegram services were not inaugurated until electric telegraphy became ...

  6. Prosigns for Morse code - Wikipedia

    en.wikipedia.org/wiki/Prosigns_for_Morse_code

    Even though represented as strings of letters, prosigns are rendered without the intercharacter commas or pauses that would occur between the letters shown, if the representation were (mistakenly) sent as a sequence of letters: In printed material describing their meaning and use, prosigns are shown either as a sequence of dots and dashes for the sound of a telegraph, or by an overlined ...

  7. List of proofreader's marks - Wikipedia

    en.wikipedia.org/wiki/List_of_proofreader's_marks

    Symbol Name Symbol(s) Meaning Example of Use Dele: Delete: Pilcrow (Unicode U+00B6) ¶ Begin new paragraph: Pilcrow (Unicode U+00B6) ¶ no: Remove paragraph break: Caret [a] (Unicode U+2038, 2041, 2380) ‸ or ⁁ or ⎀ Insert # Insert space: Close up (Unicode U+2050) ⁐ Tie words together, eliminating a space: I was reading the news⁐paper ...

  8. Telegram style - Wikipedia

    en.wikipedia.org/wiki/Telegram_style

    This telegram was sent by Orville Wright in December 1903 from Kitty Hawk, North Carolina, following the first successful airplane flight.. Telegram style, telegraph style, telegraphic style, or telegraphese [1] is a clipped way of writing which abbreviates words and packs information into the smallest possible number of words or characters.

  9. Wheatstone system - Wikipedia

    en.wikipedia.org/wiki/Wheatstone_system

    The Wheatstone slip was a paper tape that contained holes in a pattern to control the mark and space signals on the telegraph line. The paper tape was from 0.46 to 0.48 inches in width, (but the standard width is from 0.472 to 0.475 inches) and a standard thickness of 0.004 to 0.0045 inches. [3]