Binary code practical applications such as computers, electric circuits, and more. The bit string is not the only type of binary code. A binary system, in general, is any system that allows only two choices such as a switch in an electronic system or a simple true or false test. Braille is a type of binary code that is widely used by the blind to read and write by touch, named for its creator, Louis Braille. This system consists of grids of six dots each, three per column, in which each dot has two states: raised or not raised. The different combinations
Louis Braille for Representing by Dots the Form of Letters, Maps, Geometric Figures, Musical Symbols, etc., for Use by the Blind" was first published in 1839. Many of Braille's original printed works remain available at the Braille birthplace museum in Coupvray. "New Method for Representing by Dots..." (1839) put forth Braille's plan for a new writing system with which blind people could write letters that could be read by sighted people. Called decapoint, the system combined his method of dot-punching with a new specialized grill which Braille devised to overlay the paper. When used with an associated number table (also designed by