Device drivers are programs that establish a communication bridge between your hardware, like Mouse, Keyboards, printers, Sound cards, Network cards, etc., and your Operating system. Device drivers communicate with the computer hardware using the computer bus connected to the hardware. They are extremely essential for a computer system to work effectively because without a device driver the particular hardware malfunctions, i.e., it can not perform the action/function for which it was created. If the drivers in a system are not updated then the performance of the system is adversely affected.
OS and the hardware are linked together to function effectively with the help of device drivers. Now, when a computer system is newly purchased, all of its hardware drivers and its OS are in perfect sync, therefore the system runs smoothly. After certain usage and Software updates, the OS of the device keeps on becoming better, but the hardware that you are using is still the same. This leads to a gap between the hardware you are using and your OS. This dramatically impacts the performance of your entire set-up, you may experience problems like glitches in mouse connectivity, low resolution, distorted sound, and connectivity lag in your internet network. All these problems pertain to outdated device drivers, the old device drivers fail to communicate effectively with the hardware and cause your hardware to malfunction.
The effective solution to this problem is updating your device drivers to their latest or to the version that is most compatible with your current OS. After updating you can continue to use your system at its optimized performance as your OS and hardware will once again be in sync.