Before any telephone, walkie-talkie or citizen's band radio (CB Radio) was invented, telegraph was the device than can send through messages through a great distance. Though telegraph was used by military purposes, normal civilians or citizens are also allowed to use at that time to send messages back to their hometown.At early 1836, American artist Samuel F.B. Morse, American physicist Joseph Henry, and Alfred Vail had developed an electrical telegraph system. This telegraph was first used in about 1844, when it was designed to make markings or indentations on a paper tape once the electric currents were received.
Morse's original telegra
ph receiver has a mechanical clockwork to move the paper tape. Its works when electrical current received, an electromagnet engage an armature that
pushed a stylus onto the moving paper tape, making an indentation on the tape.
If the current was being interrupted, the electromagnet retracted the stylus, which caused that portion of the moving tape remained empty or unmarked.
The Morse Code was developed so that operators could tra
nslate the indentations marked on the paper tape into text messages. Due to the complexity, Alfred Vail expand the code to include letters and special characters, therefore making the code of the indentation to be generally and easily understandable.
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