| |
Morse code - Wikipedia, the free encyclopedia |
 | | Morse code is a method for transmitting information, using standardized sequences of short and long marks or pulses — commonly known as "dots" and "dashes" — for the letters, numerals, punctuation and special characters of a message. |
 | | Morse code can be transmitted in a number of ways: originally as electrical pulses along a telegraph wire, but also as an audio tone, as a radio signal with short and long pulses or tones, or as a mechanical or visual signal (e.g. |
 | | Morse code was used as an international standard for maritime communication until 1999 when it was replaced by the Global Maritime Distress Safety System. |
| en.wikipedia.org /wiki/Morse_code (3727 words) |