A teleprinter (teletypewriter, teletype or TTY) is an electromechanical device that can be used to send … See more

The teleprinter evolved through a series of inventions by a number of engineers, including Samuel Morse, Alexander Bain, Royal Earl House, David Edward Hughes, Emile Baudot, Donald Murray, Charles L. Krum… See more

Teleprinters could use a variety of different communication channels. These included a simple pair of wires, public switched telephone networks, dedicated non-switched telephone circuits (leased lines), switched n… See more

Most teleprinters used the 5-bit International Telegraph Alphabet No. 2 (ITA2). This was limited to 32 codes (2 = 32). One had to use "FIGS" (for "figures") and "LTRS" (for "letters") keys to shift state, for a combined character set sufficient … See more

British Creed & Company built teleprinters for the GPO's teleprinter service.
• Creed model 7 (page printing teleprinter introduced in 1931)
• Creed model 7B (50 baud page printing teleprinter)… See more

A global teleprinter network called Telex was developed in the late 1920s, and was used through most of the 20th century for business communications. The main difference from a standard teleprinter is that Telex inclu… See more

In addition to the 5-bit Baudot code and the much later seven-bit ASCII code, there was a six-bit code known as the Teletypesetter code (TTS) used by news wire services. It was first demonstrated in 1928 and began to see wide… See more