Using “native” app lication programs
Your computer is compatible with nearly all application programs intended
for use with Macintosh computers. But certai n programs are designed
especially for computers with PowerPC microprocessors. (These are
sometimes called “native” applications.) You’ll find that these programs take
best advantage of your computer’s speed.

Special memory requirements

Some native programs 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 programs design ed for PowerPC microprocessors, you can use space
on your computer’s hard disk as additional memory. This feature is called
virtual memory. Your computer was developed to take advantage of the vi r tual
memory feature, and comes with vi rtual memory turned on. For instructions
on how to use or increase hard disk space as memory, see the “Memory” topic
area of Mac OS Guide, available in the Guide (h) menu.
You can also add more memory to your computer, as described in Appendix C.

Shared libraries

Native programs use special files calledshared libraries. These files help the
programs to run more efficiently, and can be used by more than one native
program simultaneously. Any necessary shared libraries are installed
automatically in the System Folder when you install native programs.
If a native program requires a shared library and there is not enough memory
availa ble for the shared library, you’ll see a message that the program could
not be opened because of insufficient system memory. If this happens, see the
“Memory” topic area of Mac OSGuide, available in the Guide (h) menu, for
instructions on turning on virtual memory.
If a required shared library is missing, you’ll see a message that the program
could not be opened because the shared library could not be found. If this
happens, follow the directions that came with your program to reinstall the
program. If the shared library is still missi ng, contact the program’s
manufacturer for assistance.
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