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Morse code is a system of encoding text characters as dots and dashes for telecommunication. Learn about its development by Samuel Morse and Alfred Vail, its international alphabet and variations, and its applications and history.
Learn how to remember Morse code characters using visual, syllabic, or word mnemonics. See examples of mnemonics for letters, numbers, punctuation, and other symbols.
Prosigns are shorthand signals used in Morse code telegraphy to simplify and standardize procedural protocols. Learn about their history, notation, representations, and international variations.
Learn how to use Morse code abbreviations to speed up Morse communications by foreshortening textual words and phrases. See the table of selected abbreviations and their meanings, and the difference between abbreviations and prosigns.
Realtek Semiconductor Corp. is a fabless company that produces microchips for communications network, computer peripheral and multimedia applications. It was founded in 1987 and acquired Avance Logic in 1995, and is known for its Ethernet and audio products.
Learn how a telegraph sounder works as a receiver on electrical telegraph lines. It consists of an electromagnet, an armature and a counterweight that produce audible clicks for Morse code messages.
A sound card is an expansion card or interface that provides audio input and output to and from a computer. Learn about the general characteristics, sound channels, polyphony, history and standards of sound cards from this Wikipedia article.
Learn about the history and usage of the NATO phonetic alphabet, which is also known as the ICAO spelling alphabet, and how it differs from other military alphabets. See tables of the alphabet words and their pronunciation for different services and nations.
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