frequency-shift keyer

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Telecommunications device for the deaf — Miniprint 425 TDD. The acoustic coupler on the top is for use with telephone handsets. The printer records the conversation. The specific GA and SK keys allow for speedier use of common abbreviations. A telecommunications device for the deaf… … Wikipedia
Morse code — Chart of the Morse code letters and numerals Morse code is a method of transmitting textual information as a series of on off tones, lights, or clicks that can … Wikipedia
Manipulateur morse — Un manipulateur morse est un dispositif de commutation qui permet à un opérateur de produire des signaux selon l alphabet morse. Ces dispositifs sont utilisés en télégraphie, filaire ou sans fil. Sommaire 1 Historique 2 Principe de fonctionnement … Wikipédia en Français
Chorded keyboard — A Microwriter MW4 (circa 1980) A keyset or chorded keyboard (also called a chorded keyset, chord keyboard or chording keyboard) is a computer input device that allows the user to enter characters or commands formed by pressing several keys… … Wikipedia
Keyboard (computing) — In computing, a keyboard is an input device partially modelled after the typewriter keyboard which uses an arrangement of buttons, or keys which act as electronic switches. A keyboard typically has characters engraved or printed on the keys, and… … Wikipedia

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