Developing a graphic set for cathode ray tube display using a 7 x 9 dot pattern

A symbol set for the 96 graphic characters of the USA Standard Code for Information Exchange is presented in a 7 x 9 dot matrix. The symbols are the result of studies to optimize the legibility and readability of cathode ray tube displays. The symbols are initially presented using a pattern of dots in a 7 wide by 12 high matrix. The lower three rows of the matrix accommodate the 12 characters which have descenders. These characters, however, are redrawn so that they, as well as the other ASCII graphics, fit within a 7 x 9 matrix.