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.
The “x” in x86 denotes ISA version.
It is a Complex Instruction Set Computer (CISC) and is a 32 bit instruction set for 32 bit processor.
A 32 bit processor is designed to handle memory upto 4 GB