Apple iMac / 21.5" / Intel Core i5 2.7GHz / 4GB / 1TB / ATI Radeon HD 6770M 512MB Graphics / Mac OS X 10.7 Lion

Evolution of iMac.

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.

21.5- and 27-inch displays.

Today’s iMac has come a long way from the first 15-inch iMac. Take one look and you’ll see just how far. A 21.5- or 27-inch display with edge-to-edge glass covers nearly the entire front of the enclosure. When all you see is the display, nothing gets between you and what’s onscreen. Films, TV programmes, FaceTime HD video calls, websites, photos — everything looks stunning on the widescreen 16:9 iMac display.

LED backlighting.

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.

Seamless enclosure.

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 aluminium surface. And there’s only one lead: the power lead.

Cool, quiet components.

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 it’s on.