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
National Federation of the Blind these students can read print effectively; some are multiply impaired and cannot learn to read at all; but the NFB believes that many more than the six percent of the blind children currently learning to read Braille could be taught to read if parents and educators were committed to doing so. An even smaller percentage of adults losing vision are encouraged to learn Braille. The NFB maintains that these adults are functionally illiterate when they are no longer able to read print effectively and Braille instruction has not been made available to them. Some graduates of NFB rehabilitation programs report