PurposeeditThe main purpose of device drivers is to provide abstraction by acting as a translator between a hardware device and the applications or operating systems that use it. Jfu9QUcjkA/VL01b7s2PvI/AAAAAAAAFa8/4O0M_-cw_gw/w783-h587-no/IMG_6307.JPG' alt='Acer Aspire One 725 Usb Controller Drivers For Windows 7' title='Acer Aspire One 725 Usb Controller Drivers For Windows 7' /> They usually provide the interrupt handling required for any necessary asynchronous time dependent hardware interface. Drivers are hardware dependent and operating system specific. Once the device sends data back to the driver, the driver may invoke routines in the original calling program. When a calling program invokes a routine in the driver, the driver issues commands to the device. A driver communicates with the device through the computer bus or communications subsystem to which the hardware connects. ![]() A driver provides a software interface to hardware devices, enabling operating systems and other computer programs to access hardware functions without needing to know precise details of the hardware being used. ![]() In computing, a device driver is a computer program that operates or controls a particular type of device that is attached to a computer.
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