To make an Apple II Plus generate both lowercase and uppercase characters for
word processing applications you need a Videx (or other manufacturer) 80-column
card for the Apple II Plus. The Videx VideoTerm card handles both the reading
of keystrokes and their proper display.
Note: You must make the Apple II Plus shift key modification for this to work.
Search on "shift key mod" in the Tech Info Library for the modification
requirements.