Morse code thus determines the dot length. It is common to assume that a word is 5 characters long. There are two common typical words: "PARIS" and "CODEX". PARIS mimics a word rate that is typical of natural language words and reflects the benefits of Morse code's shorter code durations for common characters such as "e" and "t". CODEX offers a word rate that is typical of 5-letter code groups (sequences of random letters). Using the word PARIS as a standard, the number of dot units is 50 and a simple calculation shows that the dot length at 20 words per minute
Braille pattern dots-1 Braille pattern dots-1 The Braille pattern dots-1 ( ) is a 6-dot or 8-dot braille cell with the top left dot raised. It is represented by the Unicode code point U+2801, and in Braille ASCII with "A". In unified international braille, the braille pattern dots-1 is used to represent open, unrounded vowel sound, like /æ/ or /ɑ/, such as the Latin letter A, Greek alpha, Cyrillic А, Hebrew/Arabic aleph, etc. It is also used to signify the number 1. Related to Braille pattern dots-1 are Braille patterns 17, 18, and 178, which are used in 8-dot braille systems, such as