Loaded with the Windows 7 Professional 32-bit operating system, the HP 620 WZ260UT Notebook PC runs on an Intel Celeron Dual-Core T3000 1.8GHz processor and 3GB of DDR3 memory to bring you efficient performance. It comes with a 6-cell lithium-ion battery to go a long time between charges and weighs a mere 5.2 pounds for easier mobility. You can connect this computer to any open network through an Ethernet port or 802.11b/g/n wireless technology. A generous hard drive and versatile optical drive are provided to make storing and managing your data effortless.