|21.5-inch 1920 x 1080 LED-backlit display
2.8 GHz Quad-Core Intel Core i5 processor with Turbo Boost up to 3.2GHz
8GB 1600 MHz DDR3 SDRAM configurable to 16GB
Intel Iris Pro Graphics 6200
1TB Serial ATA hard drive running at 5400 rpm
NO DVD Drive
Mini DisplayPort for video output (adapters sold separately)
built-in AirPort Extreme 802.11ac wireless networking and Bluetooth 4.
FaceTime HD camera
Gigabit Ethernet port
2 Thunderbolt port
four USB 3.0 ports
SDXC card slot
built-in stereo speakers and microphone and
Wireless Apple Magic Keyboard, Magic Mouse 2, power cord
Every new iMac comes with OS X, iLife includes Photos, iMovie, GarageBand,Iwork and includes Safari, Mail, iCal, Facetime and Photo Booth. Also Iwork (Numbers,Keynote,Pages).