Apple PowerBook (2400c) - Manual (Page 135)

The keyboard on the Macintosh PowerBook 2400c computer works in much
the same way as the keyboards on other computers and on electric
typewriters. However, there are a few special keys you should know about.
Many of these keys allow you to give commands to the computer without
using the trackpad. For example, in many application programs, you can press
the x (Command) key at the same time as the Q key to quit a program.
The illustration on the following page explains the function of all the special
keys on the keyboard of the Macintosh PowerBook 2400c computer.
135
Refer to this appendix
for information on using your
Macintosh PowerBook 2400c keyboard.
Appendix B
Using Your Keyboard