Teleprinter | Wikipedia audio article
Channel: wikipedia tts
Date: 08/01/2019

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Teleprinter


00:02:18 1 History
00:13:35 2 Ways in which teleprinters were used
00:16:08 3 Teleprinter operation
00:27:50 3.1 Control characters
00:29:07 3.2 Answer back mechanism
00:30:01 4 Manufacturers
00:30:11 4.1 Creed &amp; Company
00:31:02 4.2 Kleinschmidt Labs
00:32:48 4.3 Morkrum
00:33:32 4.4 Olivetti
00:34:32 4.5 Siemens &amp; Halske
00:36:26 4.6 Teletype Corporation
00:40:49 5 Telex
00:41:08 6 Teletypesetter
00:41:19 7 Teleprinters in computing
00:43:01 8 Obsolescence of teleprinters
00:45:26 9 See also
00:48:42 10 References
00:50:41 11 Further reading



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SUMMARY
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A teleprinter (teletypewriter, Teletype or TTY) is an electromechanical typewriter that can be used to send and receive typed messages through various communications channels, in both point-to-point and point-to-multipoint configurations. The machines were adapted to provide a user interface to early mainframe computers and minicomputers, sending typed data to the computer and printing the response. Some models could also be used to create punched tape for data storage (either from typed input or from data received from a remote source) and to read back such tape for local printing or transmission.
Teleprinters could use a variety of different communication media. These included a simple pair of wires; dedicated non-switched telephone circuits (leased lines); switched networks that operated similarly to the public telephone network (telex); and radio and microwave links (telex-on-radio, or TOR). A teleprinter attached to a modem could also communicate through standard switched public telephone lines. This latter configuration was often used to connect teleprinters to remote computers, particularly in time-sharing environments.
Teleprinters have largely been replaced by fully electronic computer terminals which typically have a computer monitor instead of a printer (though the term "TTY" is still occasionally used to refer to them, such as in Unix systems). Teleprinters are still widely used in the aviation industry (see AFTN and airline teletype system), and variations called Telecommunications Devices for the Deaf (TDDs) are used by the hearing impaired for typed communications over ordinary telephone lines.