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Using application programs designed for the PowerPC microprocessor
Your Macintosh is compatible with most application programs intended for
use with Macintosh computers, but certain programs are designed especially
for computers that have the PowerPC microprocessor. These programs are
sometimes called “native” applications and they take best advantage of your
computer’s speed.
Special memory requirements
Some native applications may be slightly larger than other programs and may
take up more memory. If you find that you are running out of memory when
you use one of these programs, you can use space on your computer’s hard
disk as additional memory, which is called virtual memory. For instructions
on how to use virtual memory, see “Increasing Memory Available to Run
Applications” in the section “Working With Several Programs at a Time”
earlier in this chapter and the “Memory” topic of Macintosh Guide, available
in the Guide (h) menu.
You can also add more memory to your computer, as described in Chapter 8,
“Installing Expansion Cards or Additional Memory.”
Using older Macintosh programs
If you experience problems using an older Macintosh program, it may be
incompatible with your computer’s PowerPC microprocessor. You may be
able to use your older program if you turn off Modern Memory Manager. To
do this, pull down the Apple (K) menu, open the Control Panels submenu,
and select the Memory control panel. Then turn off Modern Memory Manager.
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Using Application Programs and Backing Up Disks