IBM 6580 User Manual

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A A
B B
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Figure 3-5. Character Box Structure
SUPERSCRIPT
NORMAL
Figure 3-6. Superscripts and Subscripts
To indicate certain areas of the
screen to the operator, either indi-
vidual characters or blocks of charac-
ters are highlighted with reverse
SUBSCRIPT
video. The display adapter card turns
off the dots in a character box that
forms the character image and turns on
the background dots (Figure 3-7).
Chapter 3. 25-Line Display 3-3

IBM 6580 Specifications

General

Brand	IBM
Model	6580
Category	Desktop
Language	English