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The roll was inserted into a compartment in the machine. Fax (short for facsimile ), sometimes called telecopying or telefax (short for telefacsimile ), is the telephonic transmission of scanned printed material (both text and images), normally to a telephone number connected to a printer or other output device.
Telex. Telex is a telecommunication service that provides text-based message exchange over the circuits of the public switched telephone network or by private lines. The technology operates on switched station-to-station basis with teleprinter devices at the receiving and sending locations. [1]
Internet fax, e-fax, or online fax is the use of the internet and internet protocols to send a fax (facsimile), rather than using a standard telephone connection and a fax machine. A distinguishing feature of Internet fax, compared to other Internet communications such as email, is the ability to exchange fax messages with traditional telephone ...
Western Union Telegraph Building, lithograph. The Western Union Company is an American multinational financial services corporation headquartered in Denver, Colorado.. Founded in 1851 as the New York and Mississippi Valley Printing Telegraph Company in Rochester, New York, the company changed its name to the Western Union Telegraph Company in 1856 after merging with several other telegraph ...
Auld Aisle Cemetery, Kirkintilloch, Scotland. Occupation (s) instrument inventor, technician, and clockmaker. Alexander Bain (12 October 1810 – 2 January 1877) [1] was a Scottish inventor and engineer who was first to invent and patent the electric clock. He installed the railway telegraph lines between Edinburgh and Glasgow.
Example of teleprinter art: a portrait of Dag Hammarskjöld, 1962. A teleprinter ( teletypewriter, teletype or TTY) is an electromechanical device that can be used to send and receive typed messages through various communications channels, in both point-to-point and point-to-multipoint configurations. Initially, from 1887 at the earliest ...
One of the oldest examples is the signal towers of the Great Wall of China. In 400 BC , signals could be sent by beacon fires or drum beats . By 200 BC complex flag signalling had developed, and by the Han dynasty (200 BC – 220 AD) signallers had a choice of lights, flags, or gunshots to send signals.
An example of this process is a disc jockey's voice being impressed into a 96 MHz carrier wave using frequency modulation (the voice would then be received on a radio as the channel "96 FM"). In addition, modulation has the advantage that it may use frequency division multiplexing (FDM). Telecommunication networks