A Proposed Fontstyle for the Graphic Representation of the Oh and Zero

Abstract

A new fontstyle is proposed for the machine rendering of the graphic representation of the letter oh and the number zero. It prescribes placing a loop on the oh and drawing the zero as an oval. The new convention is intended for use in communication environments where the discriminability of graphic symbols is critical. These environments include use of devices such as teleprinters, computer line printers, keypunch machines and cathode ray tube displays. The proposed new fontstyle does not draw upon previous conventions for distinguishing between these symbols and consequently avoids a current conflict in slashing either the oh or zero. A design criterion is also presented for distinguishing between the numbers and letters of a given font.