considerations—the =field names=, the =field width=, and the =field
type=. The field name is simply a field’s title. The field width is
the number of spaces required for the information in each field. The
field type can be one of these categories:
a. A =numeric field=—just numbers
b. A =character field= or =alphanumeric field=—numbers, letters,
question marks, miscellaneous symbols like “@,” or spaces between
letters or numbers
c. A =logical field=—one with just two choices, like “Y” for “Yes”
and “N” for “No”