Braille uses six dots per cell arranged in two vertical rows. First ten letters use top four dots, next ten add bottom left dot. Numbers use three dots from right column plus bottom left dot. Capitalization indicated by single bottom right dot
Braille uses 6-dot cells arranged in 2 columns of 3 dots each. Each dot is numbered 1-6 in the left and right columns. Standard Braille doesn't have shadow dots for sighted readers
Writing systems record human language and are classified by common features. Ideographic and pictographic scripts cannot fully express all language capabilities. Logographic systems use glyphs to represent words and morphemes. Segmental scripts represent phonemes using various grapheme combinations. True alphabets contain separate letters for consonants and vowels
Binary code uses "0" and "1" to represent data using binary digits. A byte of 8 bits can represent 256 possible values. Binary codes can be fixed-width or variable-width
Braille is a tactile code for reading and writing without sight. It uses 6-dot cells to represent letters, numbers, punctuation, and words. Louis Braille invented the modern tactile code in late 1800s
Braille was invented in 1824 by Louis Braille for blind people. System uses raised dots arranged in 3x2 configuration. Based on Charles Barbier's tactile military code