SEJARAH TELEGRAPHY
Now simply called "CW", radio communication by Morse code was the only way to communicate…
Morse Code (– — •-• ••• • -•-• — -•• •)
Morse Code was invented by Samuel F. B. Morse (1791-1872), a painter and founder of…
Morse Code History
Seriously, i dont know about Alfred Vail until i found this video.