Dell Inspiron Desktop Computer Newest Model | Intel Quad Core i7-4790 | 16GB DDR3 | 2TB HDD | Bluetooth | Keyboard | Mouse | Windows 7 Professional Intel Core i7-4790 Processor 3.6GHz up to 4.0GHz Turbo Frequency, 8MB Cache , 16GB DDR3 (8GBx2 1600MHz), 2TB 7200 rpm Hard Drive Dell KB113 Wired Keyboard, Dell MS111 USB 3-Button Optical Mouse, Tray load DVD Drive (Reads and Writes to DVD/CD), Intel HD Graphics - HDMI Wireless 802.11bgn, Bluetooth 4.0, Integrated 5.1 Audio supporting 5.1 surround sound, 8-in-1 media card reader (2) USB 3.0, (4) USB 2.0, Mic and Headphone Jacks, HDMI, VGA, RJ-45 (10/100/1000 Ethernet), 3-stack audio jacks Windows 7 Professional, 64Bit, English. Best Operation System for Business and Home Use. Windows 8.1 Pro 64bit License and Media disk also included in the package.