I am going to purchase a new iMac - I don't think they have cd drive. I have 5 user pages/numbers/etc on cd - how will I get this on new iMac?

I am going to purchase a new iMac. When I purchased my first MacBook Pro I purchased a cd that allows up to 5 users for pages/numbers/etc. My first iMac had a cd drive so I was able to load. The 2nd iMac I had them import everything from my MacBook over to the new desktop including these apps. So I have used 3 users, how will I get the apps on the 3rd iMac if it doesn't have a cd drive (my 2nd did not have a cd drive, but with the import I was fine).