Mavzu: х86 архитектураси ва унинг хусусиятлари (мисоллар билан тушунтирилсин) Variant №51 Kompyuterni tashkillashtirish fanidan

What is x86 Architecture?

x86 is a family of instruction set architectures (ISA) for computer processors initially developed by Intel. They refer to the way a computer processor (CPU) handles information.

What is an instruction set architecture?

It is an abstract model of a computer that is also referred to as computer architecture. It is part of a computer that pertains to programming which specifies the behaviour of machine code. The instruction set is the language that a computer’s brain is designed to understand which provides commands to the computer processor and tells it what to do.

Back to the x86…

The x86 is developed based on the Intel 8086 microprocessor and its 8088 variant where it started out as a 16-bit instruction set for 16-bit processors where many additions and extensions have been added to the x86 where it grew to 32-bit instruction sets over the years with almost entirely full backward compatibility.

The bit in both 32-bit and 16-bit is shorthand for a number. For example, for 32-bit, the number will contain 32 bits which are binary digits that are either 0 or 1. For a 32-bit number, it will look like something like this 10101010101010101010101010101010.

Today, the term x86 is used generally to refer to any 32-bit processor compatible with the x86 instruction set. x86 microprocessor is capable of running almost any type of computer from laptops, servers, desktops, notebooks to supercomputers.