The touchsmart 520-1030 23" all-in-one desktop computer is a true all-in-one pc with a dual-core 3.30ghz intel core i5-2120 processor and genuine windows 10 pro operating system. it features 4gb of ddr3 sdram memory that's expandable to 8gb and a sata 7200rpm hard drive with a storage capacity of 500gb, touch screen