In 1832 Samuel F. B. Morse made sketches of ideas for a system of electric telegraphy, and in 1835 he developed a code to represent letters and Numbers (Morse code).
1832年摩斯为电报系统勾画出了轮廓，1835年他研制出一套代表字母和数字的代码(摩斯密码)。
In 1832 Samuel F. B. Morse made sketches of ideas for a system of electric telegraphy, and in 1835 he developed a code to represent letters and Numbers (Morse code).
1832年摩斯为电报系统勾画出了轮廓，1835年他研制出一套代表字母和数字的代码(摩斯密码)。
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