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A specially packaged Intel 486DX and a dummy floating point unit (FPU) designed as pin-compatible replacements for an Intel 80386 processor and 80387 FPU. Since the DX variant has a working on-chip FPU, a dummy FPU package is supplied to go in the 387 FPU socket.
This article is provided by FOLDOC - Free Online Dictionary of Computing (foldoc.org)
RapidCADAn earlier chipset from Intel that replaced the 386DX CPU and provided improved performance for CAD applications.
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