Teleprinter

Synonym: call waiting *A teleprinter exchange facility signal that automatically causes a calling station to retry the call-receiver number after a given interval when the call-receiver teleprinter is occupied or the circuits are busy.

On the older machines the programs are on punched paper tape, and maybe the output is coming out on the teleprinter.

Amateurs used their existing receivers for RTTY operation but needed to add a terminal unit, sometimes called a demodulator, to convert the received audio signals to DC signals for the teleprinter.

An SLU was operating at the War HQ in Valletta, Malta. citation These units had permanent teleprinter links to Bletchley Park.

A teleprinter attached to a modem could also communicate through standard switched public telephone lines.

A teleprinter (teletypewriter, Teletype or TTY) is an electromechanical typewriter that can be used to send and receive typed messages from point to point and point-to-multipoint over various types of communications channels.

Automatic teleprinter exchange service was introduced into Canada by CPR Telegraphs and CN Telegraph in July 1957 and in 1958, Western Union started to build a Telex network in the United States.

Coded messages were taken down by hand and sent to Bletchley on paper by motorcycle despatch riders or (later) by teleprinter.

Cryptography Vernam ciphers were invented in 1917 to encrypt teleprinter communications using a key stored on paper tape.

Examples of hard copy include teleprinter pages, continuous printed tapes, computer printouts, and radio photo prints.

From the 1980s, teleprinters were replaced by computers running teleprinter emulation software.

In the letters state the teleprinter prints the letters and space while in the shifted state it prints the numerals and punctuation marks.

It was the predecessor to the International Telegraph Alphabet No. 2 (ITA2), the teleprinter code in use until the advent of ASCII.

Landline teleprinter operations began in 1849 when a circuit was put in service between Philadelphia and New York City.

Managing the disposal of chad was an annoying and complex problem, as the tiny paper pieces had a tendency to escape and interfere with the other electromechanical parts of the teleprinter equipment.

Messages were sent to and fro across the Atlantic by enciphered teleprinter links.

Now effectively obsolete, it was widely used during much of the twentieth century for teleprinter communication, for input to computers of the 1950s and 1960s, and later as a storage medium for minicomputers and CNC machine tools.

Private line teleprinter circuits were not directly connected to switching equipment.

Procès d'Amiens Baudot vs Mimault Baudot's original code was adapted to be sent from a manual keyboard, and no teleprinter equipment was ever constructed that used it in its original form.

SATTS, a legacy of Morse and teleprinter systems (see "Background," below), has historically been employed by military and communications elements of Western countries for handling Arabic text without the need for native fonts or special software.