Apple iMac 21.5" All-in-One Desktop Computer with 2.7GHz Intel Core i5 Quad-Core Processor, 4GB Memory, 1TB Hard Drive, Thunderbolt Port

The 21.5" iMac Desktop Computer MC812LL/A from Apple is a sleek All-in-One computer with a stunning 16:9 HD display. When all you see is the display, nothing gets between you and what's onscreen. The more pixels a display has, the more light those pixels need to achieve the best picture possible. And that's exactly what the LED backlighting in iMac does: It pushes light through each pixel with remarkable brightness and efficiency. Because the LED backlight doesn't take up much space, the iMac enclosure stays thin - even with all the high-performance components inside. The 21.5-inch iMac features 1920-by-1080 HD resolution. It was a great idea then and it's a great idea now.

The All-in-One design of the first flat-panel iMac cleaned up the desktop. It put everything you need - display, processor, graphics card, hard drive, optical drive, memory and more - inside one simple enclosure. Today, iMac is the gold standard for an All-in-One desktop computer.

While you'll find a collection of ports on the back of iMac, you won't find much else. A seamless, precision-forged enclosure makes the back one continuous aluminum surface. And there's only one cord: the power cord.

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 ultraquiet, so you hardly know it's on.

iMac comes with a wireless keyboard and either a Magic Mouse or a Magic Trackpad - your choice. With Magic Mouse, you get a mouse unlike any other. Its smooth, seamless design lets you control everything with simple gestures. But if you're all gestures all the time, then opt for Magic Trackpad. Its touch-friendly all-glass surface gives you plenty of room to scroll, swipe, pinch and rotate to your fingers' content.