Management Information System (MIS) Practice Exam

What is the primary function of a device driver in a computer system?

1. To manage data compression

2. To provide an interface between the operating system and hardware devices

3. To recover lost files from a disk

4. To monitor e-mail spam

The correct answer is: To provide an interface between the operating system and hardware devices

The primary function of a device driver is to provide an interface between the operating system and hardware devices. This is crucial because the operating system needs a way to communicate effectively with the various hardware components of a computer system, such as printers, graphics cards, keyboards, and network adapters. The device driver acts as a translator, converting the operating system's generic commands into device-specific commands that the hardware can understand and respond to appropriately. By fulfilling this role, device drivers ensure that the hardware operates correctly within the system, enabling applications to utilize the hardware without needing to know the specific details of how the hardware works. This abstraction also facilitates easier updates and compatibility as new hardware is introduced or as operating systems are upgraded. In contrast, other options do not reflect the primary role of a device driver. Managing data compression pertains to software utilities, recovering lost files involves data recovery tools, and monitoring e-mail spam relates to security or filtering applications. Each of these functions is distinct and does not relate to the critical role of device drivers in interfacing hardware with the operating system.