COMPUTER FUNDAMENTALS

Detailed explanation-1: -Device drivers relay requests for device access and actions from the operating system and its active applications to their respective hardware devices. They also deliver outputs or status/messages from the hardware devices to the operating system and thus to applications.

Detailed explanation-2: -A driver communicates with the device through the computer bus or communications subsystem to which the hardware connects. When a calling program invokes a routine in the driver, the driver issues commands to the device (drives it).

Detailed explanation-3: -They enable the computer’s operating system (OS) to interface with the hardware for which they were developed. And through a computer bus that links the device to the computer, the drivers and the device communicate. Device drivers must receive advice from the operating system to access and execute device instructions.

Detailed explanation-4: -A device driver is a piece of software that allows your computer’s operating system to communicate with a hardware device, the driver is written for. Generally a driver communicates with the device through the computer bus which is used to connect the device with the computer.

Detailed explanation-5: -The device driver provides the rest of the operating system with the software interface to a given device or device class. The upper layer recognizes which commands are required to control a particular device or device class.