Morse code mnemonics to remember Morse codes lies in remembering words that begin with each appropriate letter and has so called long vowel (i.e. á é í ó ú ý) for every dash and short vowel (a e i o u y) for every dot. Additionally, some other theme-related sets of words have been thought out as Czech folklore. In Indonesia, one mnemonics commonly taught in scouting method to remember Morse codes lies in remembering words that begin with each appropriate letter and substituting the o vowel for every dash and other vowels (a, i, u, and e) for every dot. Morse code
Dash of a second dash as a closing parenthesis is optional. When a closing dash is not used the sentence is ended with a period (full-stop) as usual. Dashes are, however, much less common than parentheses. In Spanish, em dashes can be used to mark off parenthetical phrases. Unlike in English, the em dashes are spaced like brackets, i.e., there is a space between main sentence and dash, but not between parenthetical phrase and dash. “Llevaba la fidelidad a su maestro –un buen profesor– hasta extremos insospechados.” Typewriters and early computers have traditionally had only a limited character set, often having