Morse code is a systemtelegraphic which can be used in multiple languages. Écompoundperpoints,traitsandspaceswhatrepresentletters,numbersandsignalsinpunctuation and was used by governments and the military.
This system allows the transmission of messages at a distance, by wire or by radio, through short and long duration sounds.
Morse Alphabet
| The | • — | j | • — — — | s | • • • |
| B | — • • • | k | — • — | t | — |
| ç | — • — • | there | • — • • | u | • • — |
| d | — • • | m | — — | v | • • • — |
| and | • | no | — • | w | • — — |
| f | • • — • | O | — — — | x | — • • — |
| g | — — • | P | • — — • | y | — • — — |
| H | • • • • | what | — — • — | z | — — • • |
| i | • • | r | • — • |
Operation
Connected by wires and electromagnets, a pencil made of iron driven by a coil marks, so instantaneous, the paper signals received through short (so-called "DIT") and long (the called “DAH”). "DAH" are three times longer than short sounds. Through morse code it is possible to transmit ten words per minute.
Precise time intervals determine the passage from letter to letter (one short pause, same as three “DIT”). A longer pause signals that the word is complete (same as seven “DIT”).
The best known sign internationally is the SOS distress call:
• • • — — — • • •
History
The invention dates from 1835 and is by the North American Samuelmorse (1791-1892), who, following the discovery of electricity, became interested in the subject. The Morse code was well tested until the transmission of its first message from the cities of Washington to Baltimore, in 1844, which consisted of the following sentence: "What works has God done!"
As flaws were discovered, however, the code was difficult to use, so it was revised and corrected, and was ready in 1851.
The code becomes increasingly obsolete due to technological advances, and is still only used in amateur radio.
It became a heritage of telegraphy, as it was the first way to communicate in real time, followed by radio and telephone. Morse code revolutionized maritime and land communications.
Since 2003, morse code has included the @ (• • • — • —); it was the first change that had taken place for many years.
Whatsuchto meetmorealphabets?Read:
- Alphabet Types
- International Phonetic Alphabet
- Greek alphabet
- History of Writing
- Alphabet Origin
And read too Media.
