HP 23-q014 23-Inch Display All-in-One PC (Intel 3.1 GHz Core i3 processor, 8 GB DDR3L RAM, 1 TB 7200 rpm SATA Hard Drive, Windows 8.1 64, bit Operating System) Windows 8.1 64 Intel Core i3-4160T with Intel HD Graphics 4400 (3.1 GHz, 3 MB cache, 2 cores) 23-inch diagonal IPS FHD multitouch-enabled LED-backlit (1920 x 1080). Intel HD Graphics 4400 8 GB DDR3L-1600 (1 x 8 GB), Upgradeable to 16 GB. 2 DIMM memory slot. 802.11b/g/n (1x1) and Bluetooth 4.0 combo. 3-in-1 memory card reader.Wireless optical mouse