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 Library for the Blind (United States) returned to the library to be proof read, corrected, shellacked, eyeleted, and bound by the blind employees, under the oversight of the director. The library sent out catalogues, both in printed ink and embossed type, the latter enabling the blind themselves to select books they wished to read. A book of instructions and a slate and stylus were sent to those desiring to learn to transcribe in English Braille. National Library for the Blind (United States) The National Library for the Blind was an American philanthropic and educational institution. The National Library for the Blind was incorporated December 26, 1911,