[amp_mcq option1=”8087″ option2=”80287″ option3=”80387″ option4=”80486DX” correct=”option4″]
The correct answer is: D. 80486DX
The 80486DX is the first x86 processor to have an internal coprocessor. The 8087, 80287, and 80387 were all external coprocessors.
A coprocessor is a specialized processor that is used to perform certain tasks more efficiently than the main processor. In the case of the 80486DX, the coprocessor is used to perform floating-point calculations.
Floating-point calculations are calculations that involve numbers that are not whole numbers. For example, the calculation 2.5 + 3.5 is a floating-point calculation.
The 80486DX’s coprocessor is able to perform floating-point calculations much faster than the main processor. This is because the coprocessor is specifically designed for floating-point calculations.
The 80486DX’s coprocessor is also able to perform other tasks, such as trigonometric and logarithmic calculations.
The 80486DX’s coprocessor is a significant improvement over the external coprocessors that were used in previous x86 processors. The coprocessor makes the 80486DX much faster for floating-point calculations.