Anyone who owns a computer and uses devices with it generally has device drivers, even if they do not realize it. These small pieces of programming are needed to help translate the communication between the operating system and the device.

Device drivers are used to configure your computer system, and without them the common devices used by your computer, like printers, digital cameras, sound cards, and many more, would not function correctly. These devices can help make your computer much more useful, allowing you to print documents and use USB hardware quickly and easily without a lot of hassles or steps.

There are two different types of mode concerning device drivers, and these are the user-mode and kernel-mode. Each specific mode has advantages and disadvantages, but the safest mode is the user-mode, because there is no instability if the device drivers stop or are not written correctly. This means that the device drivers cannot crash and damage your system if they are badly written or developed. With kernel-mode device drivers, system instability, crashes, and damage are a potential risk. These device drivers should be written using extreme care because of the damage potential.

Virtual device drivers are one type of this programming, and these drivers were created to simulate hardware devices. This is especially true in a virtualization environment, when one program type is run on a different operating system. These device drivers differ from other types, because they simulate the hardware instead of communicating with it. This allows the guest operating system and the drivers that are operating inside the virtual machine to believe they are accessing actual hardware, instead of the illusion of hardware.

Applications for Device Drivers

Device drivers interface with a large number of different devices, making communication between the devices and the operating system possible. Modern operating systems and hardware have become very diverse in current times, and there is a large number of ways that device drivers can be used.

All of the devices listed below use device drivers to communicate with various operating systems. Device drivers are created for a specific operating system, such as Windows or Mac, and these drivers should never be used on a different operating system than the one they were developed for. Device drivers are used for:

• Network cards
• Sound cards
• Printers
• Varying types of local buses
• Keyboards
• Mice
• Digital cameras
• image scanners
• File system support implementation
• Computer storage devices
• Other USB devices
• Any other device that communicates with your operating system

Understanding device drivers, what they are and what they do, can be an immense help for anyone who owns a computer. These drivers are essential to your devices working correctly, and if the device drivers are not written correctly then problems may occur, depending on the mode of the driver. Only device drivers that are verified and created by knowledgeable software engineers should be used because of the threat of system instability. If you are unsure of who the developer is, or whether the device drivers are safe, then they should not be used.