Device driver or driver software are computer programs that allows higher level computer programs to interacts with hardware components.A device driver simplifies programming by acting as a translator between a hardware device and the applications or operating system. Its application lies to components such as printer , sound card etc.Drivers are hardware dependant and operating system specific. I.e. drivers will differ for windows/Linux /Mac platforms and will be different for different hardware brands.
Driver properties for Intel processor used with Microsoft windows OS