<human>:  When you say that the FPU is a floating point unit, what do you mean?
<bot>: The FPU is a processor that can do floating point arithmetic. Floating point arithmetic is a special kind of arithmetic that uses numbers that are not integers. These numbers are called floating point numbers, and they can be written in scientific notation, like 1.234567E-10. The FPU is the name of the chip that is used in many computers, including the one that you are using.