Apple Macintosh System 7.5 - Manual (Page 93)

Most Macintosh users install system software using the Easy Install option
(shown in Chapter 2 of this book). The Easy Install option installs the
software for your model of Macintosh. For example, Easy Install updates the
printer drivers you already have, but does not add new printer drivers.
The Custom Install option allows you to select the combination of system
files, drivers, and other files you want for your own specific needs. You can
install or update a single system software component.
You may want to use the Custom Install option to add additional software or
to install a system that starts up on any Macintosh model.
m After using Easy Install, you can use Custom Install to add software. For
example, you can install utilities, additional printer drivers, or MacTCP.
m You can create a “universal” system, with software that works on all
Macintosh computers, including both 68000-family and PowerPC models.
(In this case, use Custom Install instead of Easy Install.)
To use the Custom Install option for System 7.5 or QuickDraw GX, follow the
steps on the next pages.
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Appendix A
Using the Custom Install Option