Reflector

The Reflector App can be downloaded from http://www.airsquirrels.com/reflector/ for free

To unlock so you can continue to use it once the trial expires, contact IT Support for the code.

AirPlay

Once the Reflector application is running on your Mac, it basically makes your Mac act like it's an Apple TV. So you can beam the screen of an iPad or iPhone to your Mac screen using AirPlay. And if your Mac screen is connected to a projector, that's where the device screen appears.

Here's the full break down from Apple.