What is x86

Answer 1

x86 = 32 bit for os theres also 64bit just means how the 1s 0s are being handled.

Answer 2

The x86 architecture is an instruction set architecture (ISA) series for computer processors. Developed by Intel Corporation, x86 architecture defines how a processor handles and executes different instructions passed from the operating system (OS) and software programs.
In other simple words x86 is 32bit system and x64 is 64bit.