Samuel Morse designed the Morse code in such a way, that the letters of the alphabets and the ten numerals were represented by means of short and long pulses. Hence, according to the Morse code, each character of the alphabets, numerals and punctuation marks were assigned a pattern, unique to the particular character. As per the Morse code, an operator translated the short and long pulses (characteristic to the message being sent) into electrical signals with the help of a telegraph key. At the receiving end, a sophisticated operator translated the electrical signals back to the alphabetical and/or numeral characters (whichever were present in the message). This way, the Morse system of telegraphy conveyed a message electrically.