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The master device file, which generally has a name of the form /dev/pty[p-za-e][0-9a-f], is the endpoint for communication with the terminal emulator. With this [p-za-e] naming scheme, there can be at most 256 tty pairs. Also, finding the first free pty master can introduce a race condition unless a locking scheme is
The airline teletype system uses teleprinters, which are electro-mechanical typewriters that can communicate typed messages from point to point through simple electric communications channels, often just pairs of wires.
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 ...
A typical relay service conversation. A telecommunications relay service, also known as TRS, relay service, or IP-relay, or Web-based relay service, is an operator service that allows people who are deaf, hard of hearing, deafblind, or have a speech disorder to place calls to standard telephone users via a keyboard or assistive device.
Teletype teleprinters in use in England during World War II 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.
Other names for the device include teletypewriter (TTY), textphone (common in Europe), and minicom (United Kingdom). The typical TDD is a device about the size of a typewriter or laptop computer with a QWERTY keyboard and small screen that uses an LED , LCD , or VFD screen to display typed text electronically.
PuTTY user manual (copy from 2022) PuTTY (/ ˈ p ʌ t i /) [4] is a free and open-source terminal emulator, serial console and network file transfer application. It supports several network protocols, including SCP, SSH, Telnet, rlogin, and raw socket connection.
Teleprinter or teletypewriter (TTY), an electromechanical typewriter paired with a communication channel . Sometimes used more generally for any type of computer terminal. May also be used to refer to a virtual console in Unix-like operating systems