Target Display Mode And Thunderbolt
Target Display Mode on Late 2009 and 2010 iMacs was a pretty neat trick; you connected the iMac to another Mac via the Mini Display Port connector, and the iMac’s display became a second monitor for the first Mac while the system ran “headless” underneath it. When you unplugged the cable, the iMac’s display reverted back to the iMac itself....




