When we use different computers to calculate pi, we will find that one computer is more accurate than the other. Or when we are playing a gunfight game, the bullet hits the wall and the wall will peel off a piece of wall skin accordingly. The performance of the same scene on the computer is that a complete polygonal wall skin falls on the wall, which is very dull and artificial; On another computer, you will see a very realistic image of the peeling wall, almost the ash smoke from the peeling wall, and the wall is still hanging on the falling soil, just like what we see in reality.

Everything we have seen above comes from the "floating point operation function" added inside the CPU. CPU with powerful floating-point operation function can make computer operation more accurate and computer images more vivid. In a computer, all the images on the display are represented by complex internal operations.