A driver is a piece of software that makes devices or hardware work on your computer. A driver provides the hardware with instructions on how to run in the operating system. Most of the drivers you need will come bundled in Windows, and Windows Update.
If you are adding a new piece of hardware or a device it will usually come with a cd for installing the drivers, but most of the time the drivers on the cd are outdated. Go to the manufactures website instead to download the latest drivers. It is important to get the latest drivers for improved performance, bug fixes, and security.
Some typical devices that uses drivers are printers, sound cards, video cards, keyboard and mouse.
do i need a driver,to get a computer monitor to work?