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Windows 7: CPU, RAM, Chipset/BIOS, Hardware(peripherals) and the OS

20 Sep 2012   #1

Windows 7 Ultimate x32
CPU, RAM, Chipset/BIOS, Hardware(peripherals) and the OS

Hi All.

I would just like to clear up the exact order of the relationships between the hardware(more precisely peripherals-mouse, keyboard etc), the OS, the Chipset/BIOS the RAM and CPU:

My understanding:
Action: Click a button on screen with mouse:
1. Any input from hardware is handled by the Device Drivers(Whether it is System ROM BIOS, Option ROM BIOS or Software Drivers).
2. From the drivers the instructions are sent to the Chipset(Southbridge in case of I/O devices) and then to the CPU for processing.
3. From the CPU the commands are stored in the RAM and then passed to the OS.

Is that the correct chain of events?

Thank you

My System SpecsSystem Spec


 CPU, RAM, Chipset/BIOS, Hardware(peripherals) and the OS

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