Gateway 386/33 User Manual page 61

Inside the Computer System 4-11
Installing optional expansion cards
Once you have set any jumpers or switches as described
in the expansion card's instructions, you can install the
card in the system unit.
> To install an expansion card in the system unit:
1. Powerdownthesystemand remove the system unit
cover, as described earlier in this chapter.
2. Remove thescrew securing the expansion port cover
to the rear panel. Don't lose the screw!
3. Seat the expansion card firmly in the expansion slot.
4. Securethe card to the rear panel with the screw from
step 2.
5. Replace the system unit cover.
About math coprocessors
The Intel 80387 math coprocessor is an extension to the
80386 microprocessor architecture. The combination of
the 387 with the 386 microprocessor can dramatically
increase the processing speed of application software
packages which perform mathematical operations. This
makes an ideal computer workstation platform for ap-
plications suchas financial modeling and spread sheets,
CAD/CAM, or graphics.
The 80387 math coprocessor adds over seventy mne-
monics to the 80386 microprocessor instruction set.
Specific 80387 math operations include logarithmic,
arithmetic, exponential, and trigonometric functions.
The 80387 supports integer, extended integer, floating
point and BCD data formats, and fully conforms to the
ANSI/IEEE floating point standard.