processor One of
Intel's
Intel 486 family of
microprocessors (one of the last before the
Pentium). The 486DX has a working built-in floating point unit (FPU). The
Intel 486SX is effectively a DX with the FPU disabled. The DX has a pin to select the external
data bus width (16 or 32).
The
Intel 487SX is a 486DX with a 486SX pinout.
(1995-05-09)