Today39;s iMac has come a long way from the first 15inch iMac. Take one look and you39;ll see just how far. A display with edgetoedge glass covers nearly the entire front of the enclosure. When all you see is the display, nothing gets between you and what39;s onscreen. Movies, TV shows, FaceTime HD video calls, websites, photos everything looks stunning on the widescreen 169 iMac display. The more pixels a display has, the more light those pixels need to achieve the best picture possible. And that39;s exactly what the LED backlighting in iMac does it pushes light through each pixel with remarkable brightness and efficiency. Because the LED backlight doesn39;t take up much space, the iMac enclosure stays thin even with all the highperformance components inside. The widescreen iMac display allows more room to separate the two hottest components, the CPU and the GPU. This keeps things cool inside the iMac enclosure. Apple engineers also implemented an intelligent control system that monitors temperatures and delivers just the right amount of airflow to critical components. And the three fans inside iMac have been tuned to be ultra quiet, so you hardly know it39;s on. Watching a movie, updating your blog, editing photos. Tasks like these require data to travel from place to place. The Intel Core architecture puts the processor, cache, memory controller, and graphics engine on a single chip. Since data doesn39;t have as far to travel, you get faster performance and greater efficiency. Thunderbolt technology has arrived and Apple computers are the first to have it. With one tiny port, you get lightningfast transfer speeds and huge expansion capabilities. Two 10Gbps data channels per port mean you can transfer data up to 12 times faster than with FireWire 800. And don39;t worry about a single drive or peripheral tying up the Thunderbolt port you can daisychain as many as six devices plus a display.