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)."