"Drivers or firmware for your Nvidia graphics card"
The Nvidia brand cards, like any other graphics, receive frequent firmware updates that should be applied as soon as possible to get the maximum performance possible from them. In order to automate this task you have nVFlash.
This tool is responsible for accessing the Internet to find the latest firmware version of the graphics card installed in your computer. It then allows you to download it and proceed with its installation.
The various nVFlash actions are performed by a series of commands entered into the console. Some of these are comparing adapters and removing write protection.