The Lenovo Essential H520s Desktop features multiple touch screen technology. Black in design and is clutter free, this model is also a smart performer. Powered by Intel Core i3-2120 processor with a speed of 3.20 GHz of speed, it performs very well for the system. It also houses a 500GB hard drive and 4 GB DDR3 RAM. This system comes loaded with Windows 7 Home Basic edition.