Computers cannot function without its associated peripherals like, mouse, keyboard, joysticks, soundcards and other important peripherals that has a specific task to perform while the computer is working.

When above mentioned device cannot perform a defined task, the first thing that should be checked during the installations of this peripherals is the device driver. The attached peripheral is called the device, while accompanied software that make the sure the device communicate with underlying operating system is called the device driver.

Every computer peripherals must come with an installation disk and the content of the installation disk is called the device driver. For example a new printer must come with an installation disk to enable smooth operation between the system and the printer.

A device driver must accompany the purchase of a new computer machine, this is because, for the system to function effectively the operating instructions with the accompanied device driver is included for easy and smooth operation of the new system . If by accident, a computer hard disk is formatted, the erased device drivers can be located in the manufacturer of the peripherals website.

Device drivers can conflict with a system from a different manufacturer because of competition or an upgraded version of the driver is needed to work with another manufacturer. A problematic system can also be corrected by adopting device driver upgrade, because some system can start malfunctioning or abnormally slow because the driver are not updated.