Intel 80287

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The Intel 80287 ('287') was the math coprocessor for the Intel 80286 series of microprocessors. It was used to perform floating point arithmetic operations directly in hardware.

It also operated with the 80386 chip, but not in 32-bit protected mode. For many years this was not an issue.

External links

**List of Intel microprocessors | List of Intel CPU slots, sockets**
Intel processors 4004 \| 4040 \| 8008 \| 8080 \| 8085 \| 8086 \| 8088 \| iAPX 432 \| 80186 \| 80188 \| 80286 \| 80386 \| 80486 \| i860 \| i960 \| Pentium \| Pentium Pro \| Pentium II \| Celeron \| Pentium III \| XScale \| Pentium 4 \| Pentium M \| Pentium D \| Pentium Extreme Edition \| Xeon \| Core \| Core 2 \| Itanium \| Itanium 2 (italics indicate non-x86 processors)

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