The motherboard also had space for an optional 80287 math coprocessor.
The judge's ruling Friday limited the verdict to the 80287, a math coprocessor for the 286 chip, which is no longer in great demand.
The Intel 8087 was the standard math coprocessor for the 8086 and 8088, operating on 80-bit numbers.
Three of the four major math coprocessors were lost; the graphics processor could double for one of them.
The Elf II used a simple and low-cost math coprocessor.
In later Nx586's, a x87 math coprocessor was included on-chip.
Floating-point calculations were done on separate, dedicated hardware, usually in the form of a math coprocessor.
A math coprocessor compatible with the Intel 80287 or 80387 is recommended.
The 80287 (i287) was the math coprocessor for the Intel 80286 series of microprocessors.
Microcontrollers typically do not have a math coprocessor, so floating point arithmetic is performed by software.