The Acer AL2016W is a 20-inch widescreen LCD monitor, and the Windows driver for this monitor is a software package that helps your computer communicate with the display, ensuring optimal resolution, refresh rates, and display settings. While many monitors, including the AL2016W, often work plug-and-play (meaning they don't necessarily require a specific driver), some advanced features or settings (like custom resolutions, color profiles, or monitor settings) may need an additional driver.