IMac (20-inch, Early 2006)

The iMac (20-inch, Mid 2006) was released on 2006.

The firmware identifier is iMac4,1.

Operating System

 * First Release: Mac OS X Tiger (10.4)
 * Latest Release: (1GB) Mac OS X Snow Leopard (10.6.8) / Mac OS X Leopard (10.5.8)