What are device drivers? What does the Windows Add Printer Wizard do? What is Windows Update? And when would you use it?

System programs that allow devices to communicate with your computer, e.g. printer drivers

This wizard will allow you to search for the appropriate device driver to load onto your computer so you can use a new printer.

This utility will search for any updated device driver software in order to improve the performance of your computer.

Occasionally, companies will update their driver software to fix bugs or problems in older versions.