Apple iMac 21.5: MC309B/ALED backlighting. One bright idea.Full brightness with no waiting. Thatâ?TMs the advantage of the LED-backlit iMac display. Unlike displays that take time to warm up before they reach maximum brightness; an LED-backlit display is instantly on and uniformly bright. LED backlighting also lets you finely tune the iMac display to suit the ambient light in even the dimmest room.More pixels. Better picture.The 21.5-inch iMac features 1920-by-1080 resolution. The 27-inch iMac boasts even greater resolution of 2560-by-1440. Thatâ?TMs a whopping 78 percent more pixels than the 21.5-inch model. And more pixels mean images look crisp and true to life. A 1000:1 contrast ratio gives you more vibrant colors and blacker blacks. All in a 16:9 aspect ratio â? the same as an HDTV.Next-generation quad-core Intel processors.Powered by quad-core processors; the new iMac is our fastest yet â? up to 70 percent faster than the previous generation. Every model in the lineup comes standard with the latest Intel Core i5 quad-core processor. You even have the option to configure the 21.5- or 27-inch iMac with the Intel Core i7; the fastest quad-core processor available. But why stop there? Add up to 16GB of DDR3 memory and an ultrafast 256GB solid-state drive; and youâ?TMve got an all-in-one that can handle just about anything.All-new advanced AMD Radeon HD graphics.With advanced AMD Radeon HD graphics processors across the line; iMac performs even better than before â? up to three times better; in fact. So you see more frames per second in 3D games; and you can edit HD home videos with more speed and responsiveness than you ever thought possible.Thunderbolt.The fastest; most versatile I/O in a desktop.Ultrafast and ultraflexible; the Thunderbolt port features two 10-G

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Apple iMac MC309B/A 21.5" All-in-One Desktop Intel® Core� i5-2400S 2.5GHz Processor (6M Cache, up to 3.30 GHz) 8GB DDR3 Memory - 500GB Hard Drive AMD Radeon HD 6750M graphics processor with 512MB of GDDR5 memory DVD/RW - Gigabit Ethernet - WLAN : 802.11 a

All-new design. The desktop. In its most advanced form ever.Creating the stunningly thin design of the new iMac took some equally stunning feats of technological innovation. We refined, re-imagined, or re-engineered everything about it from the inside out. The result is an elegant all-in-one computer that’s

The new iMac is amazingly thin, yet it offers faster quad core performance, up to 60% faster graphics, ultra fast Thunderbolt and USB 3 ports. It's powerful enough for a design studio, production house or science lab; and beautiful enough for any room in your home. CPU and Memory: Intel Core i5 quad core;