Скачать или смотреть Purpose of Device Driver Software

It is a software program that controls the hardware devices and peripherals which are attached to the computer and also enables them for communication with the operating system.A device driver is a computer program that controls a particular hardware device. It provides the user with an interface for the device and enables the operating system and other software to communicate with the hardware and initiate its functions.

How does a driver works?
It runs at a high privilege in the system and uses a communication subsystem (computer bus) to which the device is connected.It works as a kind of translator – it translates the information and commands from the OS to the piece of hardware. They are what enables printers, keyboards to operate and work with modern PCs.