Morse code is a system for representing letters, numerals, and punctuation using dots, dashes, and spaces, transmitted as electrical pulses or visual signals. It includes the original American Morse code and the international Morse code, the latter established as the global standard in 1851. The international version uses a consistent length for dashes and adapts for letters with diacritic marks, exemplified by the distress signal 'SOS.'

1. Robert.pugayan@deped.gov.ph
Morse Code
Robert S. Pugayan Jr.

2. The term Morse Code refers to either of two systems for
representing letters of the alphabet, numerals, and punctuation
marks by an arrangement of dots, dashes, and spaces.
The codes are transmitted as electrical pulses of varied
lengths or analogous mechanical or visual signals, such as
flashing lights. The two systems are the original “American”
Morse Code and the later International Morse Code, which
became the global standard.
One of the Morse code systems was invented in the United
States by American artist and inventor Samuel F.B. Morse during
the 1830s for electrical telegraphy.

3. A variant called the International Morse Code was devised by
a conference of European nations in 1851 to account for letters
with diacritic marks. International Morse Code uses
combinations of dots and short dashes for all letters.
In addition, the International Morse Code uses dashes of
constant length rather than the variable lengths used in the
original Morse Code. For example, the universal distress signal
“SOS” is communicated by three dots, three dashes, and three
dots—three dots denoting the letter “S” and three dashes
denoting the letter “O.”

4. The Morse Code

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