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29. Alphanumeric codes should include as a minimum:
(a) the capacity to represent the alphabet upper- and lowercase characters and the decimal numbers in a straight binary format.
(b) the capacity to code all possible decimal numbers in a direct octal representation of BCD codes.
(c) the alphabet upper- and lowercase letters, the decimal digits, the seven punctuation marks, and other characters or symbols.
(d) the ability to represent decimal numbers greater than 12810 in a straight binary format.
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