NCR 7460, Руководство пользователя

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Chapter 6: NCR 7460 2x20 Customer Display 6-5
Restriction: The last two rows of characters stored in the PC2002-L
and PC2002-M ROM require 5 x 10 dots. The PC2002-L and PC2002-M
only have 5 x 8 dots so the last two rows of characters beginning at
11100000 cannot be displayed correctly. These last two rows consist of
symbols that are not typically used. If one of these characters is
required, then the recommended method is to use CGRAM (Character
Generator RAM) to generate them. CGRAM can also be used to
generate up to 8 custom 5 x 8 characters.