If you need a computer buy an iMac if you only need a screen to add to your computer buy a Cinema Display. It is impossible to make a direct comparison between a screen and a computer.
The iMac
An iMac is a computer, while an LED Cinema Display is just a beautiful screen. You still need attach a computer to it. Most people who buy a cinema display connect their macbooks or a mac mini or mac pro.
No. The current (as of September 23, 2011) Mac Pro model does not feature Thunderbolt ports; only the newest MacBook Air, MacBook Pro, and iMac models do. However, the 27-inch LCD Cinema Display is still available for sale at Apple Stores and stores that carry Apple products, for the same price as the Thunderbolt display: $999. The LCD Cinema Display requires only a Mini-DisplayPort connection, the immediate predecessor to the Thunderbolt port.
iMac
When Apple switched to the Intel Processor.
There is no apple key on a newer iMac.
The iMac is an Apple computer.
Apple was created to losers like you can use an iMac and get a better answer XD
Yes, but a better choice for a student would be a MacBook Pro. It is portable and can be carried from classroom to classroom. It has all the features of an iMac.
The Apple iMac is a computer and its purpose is to compute.
You do not make the iMac, Apple does.
One can read Apple iMac reviews online at various websites. One can read Apple iMac reviews online at websites such as CNET, TechRadar, and Computerworld.