I have a Macbook Air mid 2012 model and now I'm thinking about buying a Mac Mini or a iMac so that I can have my Macbook Air for when I'm on the road, and the Mini or iMac stationed at home all the time. For my setup now, I have a external display for my Air when I'm working at home, and I'm getting kinda tired of disconnecting and connecting the external display, mouse, and keyboard every day.
But then I thought about, how about all my purchases on App Store (OS X apps), are they automatically cleared to be installed on my new machine, while I still have them on my Macbook Air or is there going to be some kinda conflict with license?
Best Answer
You can have up to ten devices (any combination of iOS devices or Macs) associated with one Apple ID; that means you could install the same software from the App Store on up to ten Macs. If one of them breaks or you sell one, you can de-authorize it, so your total goes down again.
For details on authorizing that go beyond your initial question (including some time limits for changing authorization), see http://support.apple.com/kb/HT4627?viewlocale=en_US&locale=en_US