Apple PowerBook (500 Series) - Manual (Page 69)

The PowerBook 500 Series keyboard works in much the same was as the
keyboards on other computers and on electric typewriters. However, there are
a few special keys you should know about.
The illustration on the following page explains the function of all the special
keys on the PowerBook 500 Series keyboard.
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Appendix B
Using Your Keyboard
Refer to this appendix for
information on using the
PowerBook 500 Series keyboard