Apple Macintosh 6500 - Manual (Page 70)

Special memory requirements
Some Power Macintosh applications may be slightly larger than other
applications and may take up more memory. If you find that you are running
out of memory when you use your Power Macintosh applications, 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,” under “Working With Several
Applications at a Time” earlier in this chapter, and the “Memory” topic area
of Macintosh Guide (or Mac OS Guide), available in the Guide (h) menu.
You can also add more memory to your computer, as described in
Appendix B, “Installing Expansion Cards or Additional Memory.”
Using older Macintosh applications
If you experience problems using an older Macintosh application, it may be
incompatible with your Power Macintosh. You may be able to use your older
application if you turn off Modern Memory Manager. To do this, open the
Apple (K) menu, choose Control Panels, and open the Memory control panel.
Then turn off Modern Memory Manager.
Using special 3D software
The special design of your computer’s logic board allows it to take advantage
of QuickDraw 3D, which is special software built into some programs to
enhance their 3D graphics. Because of this special design, called “3D
Acceleration,” your computer renders 3D images with greater speed and
fluidity than computers that don’t have this feature. As a result, you get
enhanced texturing and greater realism when you use programs that support
QuickDraw 3D, such as 3D modeling programs and many games. To take
advantage of 3D acceleration, your software must support QuickDraw 3D or
QuickDraw 3D RAVE.
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