Intel cpu, 80x86, how did you get the name? Why 80? Why 86?

This origin can be traced back to 8085. The literal meaning of this name is: an 8-bit 5-volt voltage processor produced in the 1980s. Later, when this was upgraded, 1 was simply added, and it became 8086, and a very famous ancestor of x86 appeared, so it was expanded. In fact, later 32-bit and 64-bit systems were called x86-32 and x86-64. But for the sake of distinguishing, it becomes x86 and x64 ... That's what you want to hear, isn't it? To sum up: 8085 is 8 bits, 8086 is 16 bits, x86-32 bits and x86-64 bits. Where x86 is the abbreviation of x86-32 and x64 is the abbreviation of x86-64.