Windows 8 has re-engineered its boot method by adopting The Operating System internally translate these commands into a string of low level instructionsįor communicating with the processor which in effect directs the hardware devices to send or receive data. Operating System gets built, the complexity of the hardware and its I/O functions are controlled by simple software commands from the User interface. Hardware Drivers, and finally coupled to a well-defined User interface at the peripheral layer. The core layer is an abstraction of the hardware components into software objects which are further developed through the layers into This provides the foundation for buildingĪn advanced software platform by adding logical layers incorporating increasing functionality at each layer. The firmware called BIOS is a first generation computer program in the processor's assembly language which is executed by the processor to directly control the hardware.
Just as you need a battery to start a car from which the fuel power takes over, similarly you need a firmware to start the computer and bring it to a minimal functional state from which the operating system takes over.
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