Operating Systems and Device Driver

•      In a traditional environment OS resides between the applications and the hardware

4  Responsible for controlling the environment

•      In a virtualized environment virtualization layer works between OS and hardware

4  Virtualization layer controls the environment

4  OS works as a guest and only controls the application environment

4  In some implementation OS is modified to communicate with virtualization layer

•      Device driver is a software that enables the OS to recognize the specific device