Historical Review (1/3) Telegraphy and Telephony 1837:telegraphy by Samuel Morse (Morse code) TABLE 1.1 THE MORSE CODE N 0 1 6 个 一一 0 5 4 6 4…,, 红 7 8 Y 9 0 (a)Letters (b)Numbers 1876:telephone by Alexander Bell (established Bell Telephone Company in 1877) o US patent "Improvement in telegraphy",March 7,1876 Meixia Tao SJTU 15Meixia Tao @ SJTU 15 Historical Review (1/3) q Telegraphy and Telephony n 1837: telegraphy by Samuel Morse (Morse code) n 1876: telephone by Alexander Bell (established Bell Telephone Company in 1877) o US patent “Improvement in telegraphy”, March 7, 1876