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Braille ASCII (or more formally The North American Braille ASCII Code, also known as SimBraille) is a subset of the ASCII character set which uses 64 of the printable ASCII characters to represent all possible dot combinations in six-dot braille. It was developed around 1969 and, despite originally being known as North American Braille ASCII ...
Books written in embossed alphabets like braille are quite bulky, and New York Point's system of two horizontal lines of dots was an advantage over the three lines required for braille; the principle of writing the most common letters with the fewest dots was likewise an advantage of New York Point and American Braille over English Braille.
English Braille, also known as Grade 2 Braille, [1] is the braille alphabet used for English. It consists of around 250 letters , numerals, punctuation, formatting marks, contractions, and abbreviations . Some English Braille letters, such as ⠡ ch , [2] correspond to more than one letter in print.
Computer Braille is an adaptation of braille for precise representation of computer-related materials such as programs, program lines, computer commands, and filenames. Unlike standard 6-dot braille scripts, but like Gardner–Salinas braille codes , this may employ the extended 8-dot braille patterns.
The first 25 braille letters, up through the first half of the 3rd decade, transcribe a–z (skipping w). In English Braille, the rest of that decade is rounded out with the ligatures and, for, of, the, and with. Omitting dot 3 from these forms the 4th decade, the ligatures ch, gh, sh, th, wh, ed, er, ou, ow and the letter w.
John Alston's system (capital letters only) Jacob Snider, Jr.'s system, using rounded letters similar to Haüy's system, which was used in a publication of the Gospel of Mark in 1834, the first embossed book in the United States. Samuel Gridley Howe's Boston Line using lowercase angular letters, influenced by Gall's system but more closely ...
The triangular plush figure is a playful take on the Phrygian cap, also known as the liberty cap. This type of red hat was worn during the French Revolution, and today, it represents freedom and ...
The same braille letter can be used to transcribe multiple scripts, e.g. Latin, Cyrillic, Greek and even elements of Chinese characters, as well as digits. Thus while U+2813 ⠓ BRAILLE PATTERN DOTS-125 transcribes the letter h of the Latin script, as well as the digit 8 , it transcribes ᄐ t- of Korean hangul and り ri of Japanese kana.