Go to the Apple App Store online.
There are apps that will only work with Mac OS X which can be on any Mac computer - iMac, MacBook, Mac Mini etc.
nope, there aren't any apps like that!
Depending on what your specific needs are, yes.
No, you can only get that discount on a new iMac not a refurbished iMac.
There is no "iMac Air".
The original iMac was the G3 which came out in (1998). It was followed by the G4 (2002), then the G5 (2004), then the Intel iMac plastic version (2006). The 5th iMac was the aluminum iMac which came out in (August 2007), followed by the iMac Aluminum Unibody (2009). The newest iMac is simply called 2012 iMac and it came out on November 30, 2012.
They are two incomparable things. The surface is a tablet and the iMac is a desktop. Plus, they are at two completely different price ranges. The iMac is more than double the price of the surface. It depends on your budget and what you are going to use the device for. iMac is for processor intensive tasks: gaming, graphic design, video editing, etc. Surface: word processing, casual apps, simple stuff.
An iMac is a computer, but a computer is not necessarily an iMac, so they are not the same thing.
The iMac
The original iMac was created in 1998.
No
I do not have a 24" iMac. I have a 20" iMac. Apple no longer sells the 24" iMac. If you will click the Apple logo on the top left of your screen and then click About This Mac then More Info you can find the answer.