As a youth in the DOS era, I was always enamored of fonts like OCR-A, there is some overlap between the problems of "make it easy to distinguish" and "make it h

As a youth in the DOS era, I was always enamored of fonts like OCR-A, there is some overlap between the problems of "make it easy to distinguish" and "make it hard to maliciously corrupt", although I can imagine some cases where they might be in conflict, especially if adding ink is asymmetrically easier than removing or covering it. https://en.wikipedia.org/wiki/OCR-A https://en.wikipedia.org/wiki/OCR-A