A few words about morse code
Morse code was invented in the 1830s by Samuel F. B. Morse with a practical system being release in 1844. Morse showed off this system before the US Congress in 1844, and transmitted the first public message on the 24th of May 1844. It was “What God hath wrought.”
It has been used ever since. Most countries have stopped using it by the late 1990's but you can still find amateur radio user still using it.
So what is Morse Code? Well it is defined as:
Each Morse code symbol is formed by a sequence of dits and dahs. The dit duration is the basic unit of time measurement in Morse code transmission. The duration of a dah is three times the duration of a dit. Each dit or dah within an encoded character is followed by a period of signal absence, called a space, equal to the dit duration. The letters of a word are separated by a space of duration equal to three dits, and words are separated by a space equal to seven dits
In essense, each letter is made up out a series of DOTs and DASHs. Where each DASH duration would last the same time as 3 DOTs. Here is a good old video from the US Army
You can learn more on morse code on the following website:
To learn Morse Code
If you have the desire to learn Morse code, there are quite a few websites that will help you learn it. Here are just a few to get you started
Here is a nice visual representation of morse code to help you remember them: