What is an FPU, and does my computer have one?
Floating-point Units (FPUs or math coprocessors), such as the 68881/68882, offer the greatest benefit in applications that tend to be very floating-point (arithmetic) intensive. The specific types of applications that benefit most from an FPU are those that process large amounts of floating-point instructions for precision, and will utilize an FPU extensively. Examples are CAD/CAM, 3-D modeling, scientific applications, and financial applications. Below is a listing of which Macintosh Centris & Quadra products have a Math Coprocessor (FPU) and which do NOT: Quadra 605 (NONE of the configurations have an FPU) Macintosh Centris 610 (NONE of the below configurations have an FPU) M1345LL/A Macintosh Centris 610 4 MB Hard Disk 80 CPU (no Ethernet) M1392LL/A Macintosh Centris 610 4 MB Hard Disk 80 CPU M1397LL/A Macintosh Centris 610 8 MB Hard Disk 230 CPU M1398LL/A Macintosh Centris 610 8 MB (1 MB VRAM) Hard Disk 230 CPU w/CD-ROM Macintosh Quadra 610 (first two configurations below HAVE an F