I bought all CS6 versions of Photoshop, Bridge, Illustrator and InDesign and it came to me on disc so I had put that onto my laptop. I have been using my laptop with these programs for some time now, but I am now looking at purchasing a desktop computer. Will I be able to install these programs via my disc onto my new desktop computer ?
Your license allows you to have two machines with activated installations. So you can have it installed and activated on both your laptop and your desktop, assuming the machines are compatible with the software.
If you ever wish to have it on yet another machine then you would need to deactivate it (Help -> Deactivate in any one of the suite programs) on one of the other two so that you have an activation available for the new installation.