ok so i have an iMac 2007 model and iPad 1, i wanted to know if it can connect to appletv3 and how to connect all apple devices to appletv (Devices : Iphone 4, 4s, iMac 2007, iPad 1)
Well you do have an option of using Airparrot with your iMac. There is a 20min demo to try and see how it works.
I believe you can use Airplay with your iPad 1, only thing is that you can't use mirroring. Although if you are sending pictures, videos or music, it should work.
Getting Airplay on the iPad is the same way as boto said with the iPhone. Another way is to press the Airplay icon on videos, picture and sound if the App supports it.
are you sure air parrot will work with my imac?