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  2. Instructograph - Wikipedia

    en.wikipedia.org/wiki/Instructograph

    The Instructograph was a paper tape-based machine used for the study of Morse code. The paper tape mechanism consisted of two reels which passed a paper tape across a reading device that actuated a set of contacts which changed state dependent on the presence or absence of hole punches in the tape.

  3. 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]

  4. Morse code - Wikipedia

    en.wikipedia.org/wiki/Morse_code

    Morse code receiver that records on paper tape. The American artist Samuel Morse, the American physicist Joseph Henry, and mechanical engineer Alfred Vail developed an electrical telegraph system. The simple "on or off" nature of its signals made it desirable to find a method of transmitting natural language using only electrical pulses and the ...

  5. 16-line message format - Wikipedia

    en.wikipedia.org/wiki/16-line_message_format

    16-line message format, or Basic Message Format, is the standard military radiogram format (in NATO allied nations) for the manner in which a paper message form is transcribed through voice, Morse code, or TTY transmission formats. The overall structure of the message has three parts: HEADING (which can use as many as 10 of the format's 16 ...

  6. Telegraph code - Wikipedia

    en.wikipedia.org/wiki/Telegraph_code

    In 1865, a conference in Paris adopted the Gerke code as the international standard, calling it International Morse Code. With some very minor changes, this is the Morse code used today. The Cooke and Wheatstone telegraph needle instruments were capable of using Morse code since dots and dashes could be sent as left and right movements of the ...

  7. Ticker tape - Wikipedia

    en.wikipedia.org/wiki/Ticker_tape

    This used the technology of the then-recently invented telegraph machines, with the advantage that the output was readable text, instead of the dots and dashes of Morse code. A special typewriter designed for operation over telegraph wires was used at the opposite end of the telegraph wire connection to the ticker machine. Text typed on the ...

  8. Syphon recorder - Wikipedia

    en.wikipedia.org/wiki/Syphon_recorder

    It automatically records an incoming telegraph message as a wiggling ink line on a roll of paper tape. [2] Later a trained telegrapher would read the tape, translating the pulses representing the "dots" and "dashes" of the Morse code to characters of the text message.

  9. Morse code abbreviations - Wikipedia

    en.wikipedia.org/wiki/Morse_code_abbreviations

    Morse code abbreviations are not the same as prosigns.Morse abbreviations are composed of (normal) textual alpha-numeric character symbols with normal Morse code inter-character spacing; the character symbols in abbreviations, unlike the delineated character groups representing Morse code prosigns, are not "run together" or concatenated in the way most prosigns are formed.