This package contains the Realtek Wireless LAN Drivers that are required to enable the integrated Realtek Wireless LAN Adapter in supported notebooks that are running a supported operating system.
A device driver is a small piece of software that tells the operating system and other software how to communicate with a piece of hardware. For example, all printers come accompanied with drivers to install that tell the operating system exactly how to print information on the page.
Sound card drivers tell your software exactly how to translate data into audio signals that the card can output to a set of speakers. About.com - http://pcsupport.about.com/od/termsag/g/term_driver.htm
